Vocabulary

  • have to: Must do
  • outside of: Located or situated beyond the boundaries or confines of something.
  • inside of: Within; in the inner part of.
  • eat up: To eat all of something
  • going on: To continue doing something
  • deal with
  • with it: Intelligent, alert, and up-to-date.
  • go after: To chase or pursue something
  • jump out: To suddenly appear or move forward, often to surprise someone.
  • kill me: An exaggerated expression of frustration or annoyance.
  • sneak up: To approach someone quietly and unnoticed.
  • primary purpose: The main or most important aim or reason for something.
  • sneak in: To enter a place secretly and quietly, usually without permission.
  • in addition to: Besides; as well as
  • as well as: Also; in addition to
  • search for: To try to find someone or something.
  • in your face: Bold, aggressive, and confrontational.
  • with the exception of: Excluding; not including.
  • chase down: To pursue someone or something in order to catch them.
  • move around: To change position or location; to go from place to place.
  • roll over: To make a payment later than planned
  • hang out: To spend time with your friends
  • look around: To explore a place; search for something.
  • on the surface: Appearing to be true or real until examined more closely.
  • in love with: Feeling romantic love for someone.
  • after all: In spite of what was expected; used to introduce a statement that supports a previous statement or explains why it was made
  • know about: To have information or understanding of a subject or situation.
  • stand for: To support a particular idea, e.g. in politics
  • look at: To use your eyes to focus on something
  • call the shots: To be in charge; to make the decisions.
  • for instance: As an example.
  • over to: Used to hand over to someone else to speak
  • all at once: Suddenly; at the same time
  • at once: Immediately; without delay
  • of itself: Happening automatically without external cause or help.
  • in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
  • breaks down: To forcibly break, destroy or make collapse
  • next to: Being located along side another
  • turn into: To change to become something else
  • come along: To go with someone who takes the lead
  • stick around: To remain in place; not leave or go
  • out of time: Having no more time available to do something.
  • stuff: Generic description for things, materials, objects
  • specific: Precise; particular; just about that thing
  • constantly: Frequently, or without pause
  • process: To organize and use data in a computer
  • immune: Having a special protection from, e.g. the law
  • present: Being in attendance; being there; having turned up
  • basically: Used before you explain something simply, clearly
  • acquire: To get or earn something by thinking or working
  • crap: Impolite way of saying something is not good; Faeces
  • elite: The richest, most powerful, best-educated, or best-trained group in a society
  • bacteria: The very small creatures that can cause disease
  • environment: Natural world in which plants and animals live
  • protein: Group of molecules made from amino acids
  • sneak: To move around in a way so no one will see you
  • freak: (Of weather, etc.) unusual; unpredictable; amazing
  • fluid: A material that can easily flow, e.g. water
  • bit: Device put in a horse's mouth to control it
  • innate: Being part of something's nature
  • response: Something said/written as an answer to something
  • deal: To cope with something - usually troubles
  • mature: Behaving like an adult
  • primary: Most important, most basic or essential
  • surface: To give (road) a top layer
  • digestive: Concerning processes of converting food to energy
  • disgusting: Having a very bad taste
  • inflammatory: Making or intended to make someone angry
  • provide: To make available; to supply for use
  • infection: (Computers) Having a computer virus
  • pathogen: Any disease-producing agent
  • detect: To discover or identify the presence of something
  • produce: Fresh foods such as fruits and vegetables
  • expose: To make visible, without covering or protection
  • normal: Standard or regular way of doing something
  • signal: To be evidence/an indication something will happen
  • mucus: Thick liquid substance made in certain parts of the human body, such as the nose
  • activity: An action or task, e.g. sports, washing clothes
  • personally: By a specific person, and not by anyone else
  • stomach: Place in the body where food is processed
  • receptor: A nerve ending that changes stimuli into impulses
  • chemical: Basic substance produced by mixing elements
  • defense: Argument in support of something
  • membrane: Outside covering of a cell
  • ton: Unit of weight; 907 kilograms (US); 1016 (UK)
  • single: One run in cricket or a hit baseball
  • invade: To enter something causing a harmful result
  • system: Set of organized, planned ideas that work together
  • information: Collection of facts and details about something
  • tract: A system of body parts or organs that has a particular function (e.g., digestive tract).
  • virus: File secretly put on computers to cause harm
  • kind: In a caring and helpful manner
  • bloodstream: Blood flowing through the circulatory system
  • microscopic: Too small to be seen with the eyes
  • immunity: State of not being able to catch a disease
  • tube: Plastic or metal container for soft substances
  • differentiate: To see or show how things are not the same
  • marrow: A soft, fatty tissue inside bones
  • sketchy: Lacking detail or being incomplete
  • antigen: Substance that produces antibodies in the body
  • invader: Someone who enters to cause harm
  • infect: To introduce a computer virus to
  • antibody: Substance produced by the body to fight disease
  • mediate: To help to reach an agreement between people
  • pus: Yellow fluid produced from inflamed wound, etc.
  • clone: To make an exact copy of a living thing
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    • acquire

      US /əˈkwaɪr/

      UK /ə'kwaɪə(r)/

      • Transitive Verb
      • To get or earn something by thinking or working
      • To develop or learn a skill, habit, or quality.
      A2TOEIC
      More
    • after all

      US /ˈæftɚ ɔl/

      UK /ˈɑ:ftə ɔ:l/

      • Adverb
      • In spite of what was expected; used to introduce a statement that supports a previous statement or explains why it was made
      • Considering everything; used to indicate that something is happening or is true despite some difficulty or obstacle
      • Phrase
      • Despite what was expected or thought; in spite of everything.
      • Taking everything into consideration; considering that.
      B1
      More
    • all at once

      US

      UK

      • Adverb
      • Suddenly; at the same time
      • At the same time; simultaneously
      • Phrase
      • Suddenly; at the same time
      A1
      More
    • antibody

      US /ˈæntibɑ:di/

      UK /ˈæntibɒdi/

      • Countable Noun
      • Substance produced by the body to fight disease
      B1
      More
    • antigen

      US /ˈæntɪdʒən/

      UK /ˈæntɪdʒən/

      • Noun
      • Substance that produces antibodies in the body
      B2
      More
    • as well as

      US /æz wɛl æz/

      UK /æz wel æz/

      • Adverb
      • Also; in addition to
      • Preposition
      • In addition to; and also.
      A1
      More
    • at once

      US /æt wʌns/

      UK /æt wʌns/

      • Adverb
      • Immediately; without delay
      • At the same time; simultaneously
      A2
      More
    • bacteria

      US /bækˈtɪriə/

      UK /bæk'tɪərɪə/

      • Noun (plural)
      • The very small creatures that can cause disease
      B2
      More
    • basically

      US /ˈbesɪkəli,-kli/

      UK /ˈbeɪsɪkli/

      • Adverb
      • Used before you explain something simply, clearly
      • In essence; when you consider the most important aspects of something.
      A2
      More
    • bloodstream

      US /ˈblʌdˌstrim/

      UK /ˈblʌdstri:m/

      • Uncountable Noun
      • Blood flowing through the circulatory system
      C2
      More
    • breaks down

      US

      UK

      • Phrasal Verb
      • To forcibly break, destroy or make collapse
      • (Machine) to stop working or become weaker
      A1
      More
    • call the shots

      US

      UK

      • Idiom
      • To be in charge; to make the decisions.
      • Verb (Transitive/Intransitive)
      • To be in a position of authority and make the important decisions.
      A1
      More
    • chase down

      US /tʃes daʊn/

      UK /tʃeis daun/

      • Phrasal Verb
      • To pursue someone or something in order to catch them.
      • To try to find or obtain something, often with difficulty.
      B2
      More
    • chemical

      US /ˈkɛmɪkəl/

      UK /ˈkemɪkl/

      • Noun (Countable/Uncountable)
      • Basic substance produced by mixing elements
      • The branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.
      • Adjective
      • Made of various elements
      A2
      More
    • clone

      US /kloʊn/

      UK /kləʊn/

      • Transitive Verb
      • To make an exact copy of a living thing
      B2
      More
    • come along

      US /kʌm əˈlɔŋ/

      UK /kʌm əˈlɔŋ/

      • Phrasal Verb
      • To go with someone who takes the lead
      • To make progress toward a goal
      A1
      More
    • constantly

      US /ˈkɑnstəntlɪ/

      UK /ˈkɒnstəntli/

      • Adverb
      • Frequently, or without pause
      • In a way that is unchanging or faithful
      B1
      More
    • deal with

      US /dil wɪð/

      UK /di:l wið/

      • Verb (Transitive/Intransitive)
      • To buy or sell goods or services.
      • Phrasal Verb
      • To take action to solve a problem or manage a situation.
      • To be about; concern.
      A1
      More
    • defense

      US /dɪˈfɛns/

      UK /dɪ'fens/

      • Noun (Countable/Uncountable)
      • Argument in support of something
      • The process of protecting something from attack
      B1TOEIC
      More
    • detect

      US /dɪˈtɛkt/

      UK /dɪˈtekt/

      • Transitive Verb
      • To discover or identify the presence of something
      A2TOEIC
      More
    • differentiate

      US /ˌdɪfəˈrɛnʃiˌet/

      UK /ˌdɪfə'renʃɪeɪt/

      • Verb (Transitive/Intransitive)
      • To see or show how things are not the same
      • Become distinct or specialized.
      B1
      More
    • digestive

      US /daɪˈdʒɛstɪv, dɪ-/

      UK /daɪˈdʒestɪv/

      • Adjective
      • Concerning processes of converting food to energy
      B2
      More
    • disgusting

      US /dɪsˈɡʌstɪŋ/

      UK /dɪsˈgʌstɪŋ/

      • Adjective
      • Having a very bad taste
      • Extremely unpleasant or unacceptable.
      • Transitive Verb
      • To cause a strong negative reaction or feeling
      B2
      More
    • eat up

      US /it ʌp/

      UK /i:t ʌp/

      • Phrasal Verb
      • To eat all of something
      • To use a large amount of something, especially money or time.
      A1
      More
    • elite

      US /iˈliːt/

      UK /iˈliːt/

      • Noun (Countable/Uncountable)
      • The richest, most powerful, best-educated, or best-trained group in a society
      • A person of the elite class.
      • Adjective
      • Belonging to the richest, most powerful, best-educated, or best-trained group in a society
      B2
      More
    • expose

      US /ɪkˈspoʊz/

      UK /ɪk'spəʊz/

      • Transitive Verb
      • To make visible, without covering or protection
      • To allow light through a cameras lens onto film
      A2TOEIC
      More
    • fluid

      US /ˈfluɪd/

      UK /'flu:ɪd/

      • Noun (Countable/Uncountable)
      • A material that can easily flow, e.g. water
      • Liquid that flows smoothly, such as water
      • Adjective
      • Able to move smoothly or gracefully
      • Liable to change; unstable.
      B2
      More
    • for instance

      US /fɔr ˈɪnstəns/

      UK /fɔ: ˈinstəns/

      • Adverb
      • As an example.
      • Phrase
      • As an example.
      • As an illustration or case in point
      B1
      More
    • freak

      US /friːk/

      UK /friːk/

      • Adjective
      • (Of weather, etc.) unusual; unpredictable; amazing
      • Noun
      • A person, animal, or event that is physically abnormal, very unusual, or unlike others.
      • A person with an unusual appearance or behaviour.
      B2
      More
    • go after

      US /ɡo ˈæftɚ/

      UK /ɡəu ˈɑ:ftə/

      • Phrasal Verb
      • To chase or pursue something
      A1
      More
    • going on

      US /ˈɡoɪŋ ɑn/

      UK /ˈgəʊɪŋ ɔn/

      • Phrasal Verb
      • To continue doing something
      • To happen (usually negative)
      A1
      More
    • hang out

      US /hæŋ aʊt/

      UK /hæŋ aut/

      • Phrasal Verb
      • To spend time with your friends
      • To spend times with friends or relax doing nothing
      A2
      More
    • have to

      US /hæv tu/

      UK /ˈhæv tə/

      • Auxiliary Verb
      • Must do
      A1
      More
    • immune

      US /ɪˈmjoon/

      UK /ɪˈmju:n/

      • Adjective
      • Having a special protection from, e.g. the law
      • Protected against a particular disease or condition because of antibodies or vaccination.
      B1
      More
    • immunity

      US /ɪˈmjunɪti/

      UK /ɪˈmju:nəti/

      • Uncountable Noun
      • State of not being able to catch a disease
      B1
      More
    • in addition to

      US /ɪn əˈdɪʃən tu/

      UK /in əˈdiʃən tu:/

      • Preposition
      • Besides; as well as
      • Phrase
      • Besides; as well as.
      • Furthermore; moreover.
      B1
      More
    • in fact

      US /ɪn fækt/

      UK /in fækt/

      • Adverb
      • Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
      • Used to introduce a more detailed or surprising piece of information.
      • Phrase
      • Used to emphasize the truth of a statement, especially one that is surprising or contrary to what might be expected.
      C1
      More
    • in love with

      US //ɪn lʌv wɪð//

      UK

      • Adjective
      • Feeling romantic love for someone.
      • Extremely enthusiastic about or fond of something.
      A1
      More
    • in your face

      US

      UK

      • Adjective
      • Bold, aggressive, and confrontational.
      A1
      More
    • infect

      US /ɪnˈfɛkt/

      UK /ɪn'fekt/

      • Transitive Verb
      • To introduce a computer virus to
      • To give a disease, bacteria or virus to
      B1
      More
    • infection

      US /ɪnˈfɛkʃən/

      UK /ɪnˈfekʃn/

      • Noun
      • (Computers) Having a computer virus
      • Making or becoming sick with a bacteria/virus
      A2
      More
    • inflammatory

      US /ɪnˈflæməˌtɔri, -ˌtori/

      UK /ɪnˈflæmətri/

      • Adjective
      • Making or intended to make someone angry
      B2TOEIC
      More
    • innate

      US /ɪˈneɪt/

      UK /ɪˈneɪt/

      • Adjective
      • Being part of something's nature
      • Present (in a person) from birth
      B2TOEIC
      More
    • inside of

      US /ɪnˈsaɪd ʌv/

      UK /inˈsaid ɔv/

      • Preposition
      • Within; in the inner part of.
      • Within a certain period of time.
      A1
      More
    • invade

      US /ɪnˈved/

      UK /ɪnˈveɪd/

      • Transitive Verb
      • To enter something causing a harmful result
      • To enter (a country or region) so as to subjugate or occupy it.
      B1
      More
    • invader

      US /ɪnˈvedɚ/

      UK /ɪnˈveɪdə(r)/

      • Countable Noun
      • Someone who enters to cause harm
      B1
      More
    • jump out

      US /dʒʌmp aʊt/

      UK /dʒʌmp aut/

      • Phrasal Verb
      • To suddenly appear or move forward, often to surprise someone.
      • To be very obvious or easily noticeable.
      A2
      More
    • kill me

      US

      UK

      • Interjection
      • An exaggerated expression of frustration or annoyance.
      • Phrase
      • A direct request to end one's life, often due to unbearable suffering.
      A2
      More
    • know about

      US /noʊ əˈbaʊt/

      UK /nəʊ əˈbaut/

      • Phrasal Verb
      • To have information or understanding of a subject or situation.
      More
    • look around

      US /lʊk əˈraʊnd/

      UK /luk əˈraund/

      • Phrasal Verb
      • To explore a place; search for something.
      A1
      More
    • look at

      US /lʊk æt/

      UK /luk æt/

      • Phrasal Verb
      • To use your eyes to focus on something
      • To focus your eyes on something carefully
      A1
      More
    • marrow

      US /ˈmæro/

      UK /'mærəʊ/

      • Uncountable Noun
      • A soft, fatty tissue inside bones
      C2
      More
    • mature

      US /məˈtʃʊr/

      UK /məˈtʃʊə(r)/

      • Adjective
      • Behaving like an adult
      • Being fully developed physically
      • Intransitive Verb
      • (Wine, cheese) To age to improve its taste
      A2
      More
    • mediate

      US /ˈmidiˌet/

      UK /'mi:dɪeɪt/

      • Verb (Transitive/Intransitive)
      • To help to reach an agreement between people
      B1
      More
    • membrane

      US /ˈmɛmˌbren/

      UK /'membreɪn/

      • Noun (Countable/Uncountable)
      • Outside covering of a cell
      • A thin covering of tissue or of a cell
      B2
      More
    • microscopic

      US /ˌmaɪkrəˈskɑ:pɪk/

      UK /ˌmaɪkrəˈskɒpɪk/

      • Adjective
      • Too small to be seen with the eyes
      • Relating to or involving the use of a microscope.
      B1
      More
    • move around

      US /muv əˈraʊnd/

      UK /mu:v əˈraund/

      • Phrasal Verb
      • To change position or location; to go from place to place.
      • Intransitive Verb
      • To spread or circulate (e.g., information, rumors).
      More
    • next to

      US /nɛkst tu/

      UK /nekst tu:/

      • Preposition
      • Being located along side another
      • In comparison with
      • Adverb
      • Almost; nearly
      A1
      More
    • of itself

      US /ʌv ɪtˈself/

      UK /əv ɪtˈself/

      • other
      • Happening automatically without external cause or help.
      B1
      More
    • on the surface

      US /ɑn ði ˈsɚfəs/

      UK /ɔn ðə ˈsə:fis/

      • Phrase
      • Appearing to be true or real until examined more closely.
      • Located on the outer part or uppermost layer of something.
      B2
      More
    • out of time

      US /aʊt ʌv taɪm/

      UK /aut ɔv taim/

      • Adjective
      • Having no more time available to do something.
      A1
      More
    • outside of

      US /aʊtˈsaɪd ʌv/

      UK /ˌautˈsaid ɔv/

      • Preposition
      • Located or situated beyond the boundaries or confines of something.
      • Beyond the scope, range, or limits of something.
      A1
      More
    • over to

      US

      UK

      • Preposition
      • Used to hand over to someone else to speak
      • The responsibility is now yours
      More
    • pathogen

      US /ˈpæθədʒən/

      UK /ˈpæθədʒən/

      • Noun
      • Any disease-producing agent
      C1
      More
    • personally

      US /ˈpəsənəli/

      UK /ˈpɜ:sənəli/

      • Adverb
      • By a specific person, and not by anyone else
      • Knowing someone as a friend, or closely
      A2
      More
    • primary

      US /ˈpraɪˌmɛri, -məri/

      UK /'praɪmərɪ/

      • Adjective
      • Most important, most basic or essential
      • Happening first; earliest
      B2
      More
    • primary purpose

      US

      UK

      • Noun
      • The main or most important aim or reason for something.
      B1
      More
    • process

      US /ˈprɑsˌɛs, ˈproˌsɛs/

      UK /prə'ses/

      • Transitive Verb
      • To organize and use data in a computer
      • To deal with official forms in the way required
      • Noun (Countable/Uncountable)
      • Dealing with official forms in the way required
      • Set of changes that occur slowly and naturally
      A2TOEIC
      More
    • protein

      US /ˈprəʊˌtiːn/

      UK /ˈprəʊti:n/

      • Noun (Countable/Uncountable)
      • Group of molecules made from amino acids
      B1
      More
    • pus

      US /pʌs/

      UK /pʌs/

      • Uncountable Noun
      • Yellow fluid produced from inflamed wound, etc.
      C1
      More
    • receptor

      US /rɪˈseptər /

      UK /rɪˈseptə(r)/

      • Noun
      • A nerve ending that changes stimuli into impulses
      B2
      More
    • response

      US /rɪˈspɑns/

      UK /riˈspɔns/

      • Noun
      • Something said/written as an answer to something
      • Reaction to something that has occurred
      A2TOEIC
      More
    • roll over

      US

      UK

      • Phrasal Verb
      • To make a payment later than planned
      • To turn your body when lying down
      A2
      More
    • search for

      US /sɚtʃ fɔr/

      UK /sə:tʃ fɔ:/

      • Phrasal Verb
      • To try to find someone or something.
      B1
      More
    • signal

      US /ˈsɪɡnəl/

      UK /'sɪɡnəl/

      • Verb (Transitive/Intransitive)
      • To be evidence/an indication something will happen
      • To make a noise or motion to tell someone to start
      • Noun (Countable/Uncountable)
      • Evidence or an indication something will happen
      • Movement of a hand or other means to send messages
      A2
      More
    • sketchy

      US /ˈskɛtʃi/

      UK /ˈsketʃi/

      • Adjective
      • Lacking detail or being incomplete
      • Seeming bad, risky or dangerous
      C2TOEIC
      More
    • sneak

      US /snik/

      UK /sni:k/

      • Verb (Transitive/Intransitive)
      • To move around in a way so no one will see you
      • To take something somewhere/give secretly
      • Intransitive Verb
      • To move around in such a way no one will see you
      B2
      More
    • sneak in

      US /snik ɪn/

      UK /sni:k in/

      • Phrasal Verb
      • To enter a place secretly and quietly, usually without permission.
      C2
      More
    • sneak up

      US /snik ʌp/

      UK /sni:k ʌp/

      • Phrasal Verb
      • To approach someone quietly and unnoticed.
      A1
      More
    • specific

      US /spɪˈsɪfɪk/

      UK /spəˈsɪfɪk/

      • Adjective
      • Precise; particular; just about that thing
      • Concerning one particular thing or kind of thing
      A2
      More
    • stand for

      US /stænd fɔr/

      UK /stænd fɔ:/

      • Phrasal Verb
      • To support a particular idea, e.g. in politics
      • To represent or symbolize
      A1
      More
    • stick around

      US /stɪk əˈraʊnd/

      UK /stik əˈraund/

      • Phrasal Verb
      • To remain in place; not leave or go
      A2
      More
    • stomach

      US /ˈstʌmək/

      UK /'stʌmək/

      • Noun
      • Place in the body where food is processed
      • Verb (Transitive/Intransitive)
      • to be able to accept something unpleasant
      A2
      More
    • stuff

      US /stʌf/

      UK /stʌf/

      • Uncountable Noun
      • Generic description for things, materials, objects
      • Transitive Verb
      • To push material inside something, with force
      B1
      More
    • surface

      US /ˈsɚfəs/

      UK /'sɜ:fɪs/

      • Transitive Verb
      • To give (road) a top layer
      • Intransitive Verb
      • To appear after being hidden, unseen, or unknown
      • To come to the top of something; emerge
      A2TOEIC
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    • ton

      US /tʌn/

      UK /tʌn/

      • Noun
      • Unit of weight; 907 kilograms (US); 1016 (UK)
      A2
      More
    • tract

      US /trækt/

      UK /trækt/

      • Noun (Countable/Uncountable)
      • A system of body parts or organs that has a particular function (e.g., digestive tract).
      • An area of land, typically a large one.
      C1TOEIC
      More
    • tube

      US /tub,tjub/

      UK /tju:b/

      • Noun (Countable/Uncountable)
      • Plastic or metal container for soft substances
      • Long hollow pipe used to hold or liquids or gases
      B1
      More
    • turn into

      US /tɚn ˈɪntu/

      UK /tə:n ˈɪntuː/

      • Phrasal Verb
      • To change to become something else
      • To change your direction to go into a place
      A1
      More
    • virus

      US /ˈvaɪrəs/

      UK /'vaɪrəs/

      • Noun
      • File secretly put on computers to cause harm
      • Living organism that causes disease or sickness
      B1
      More
    • with it

      US /wɪð ɪt/

      UK /wið it/

      • Adjective
      • Intelligent, alert, and up-to-date.
      • Understanding and knowledgeable about current trends or information.
      A1
      More
    • with the exception of

      US

      UK

      • Phrase
      • Excluding; not including.
      A1
      More
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    01:03

    She took a brave step forward, leaving behind her comfort zone to chase her dreams.

    Vocabulary
    • brave

      adj. Having courage

    • comfort zone

      phr. A familiar situation where one feels safe

    Explanation
    a brave step is a noun phrase, where brave is an adjective modifying the noun step, meaning "a courageous step". forward is an adverb modifying step, meaning "ahead". The whole phrase serves as the object, answering the "what" of took (verb) — she took a brave step forward.

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    brave

    US/brev/
    UK/breɪv/
    adj.Brave
    v.t.To bravely face
    A2 Elementary

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    B2
    #CrashCourse#immune#immune system#system#pathogen#helper

    Your Immune System: Natural Born Killer - Crash Course Biology #32

    0
    Chi-feng Liu posted on 2013/04/25
    Ever wondered how your body fights off invaders? This video dives into the amazing world of your immune system, explaining everything from innate immunity to those super-important antibodies. You'll pick up tons of advanced vocabulary related to immunology and microbial warfare, making it a fantastic way to boost your English knowledge!

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