Vocabulary

  • come back: To reply to someone, often forcefully
  • in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
  • as long as: For the period that; provided that.
  • do over: To repeat an action; do something again
  • over time: Gradually; as time passes.
  • regardless of
  • based on: To use something as the foundation or starting point for something else.
  • end up with: To have something as a result.
  • number of people: The total count of individuals within a group or gathering.
  • false positive: A test result which incorrectly indicates that a particular condition or attribute is present.
  • for free: Without charge; at no cost.
  • in on: To be involved in a secret or plan.
  • zero in: To focus on a target
  • thanks to: Because of; as a result of.
  • significant: Large enough to be noticed or have an effect
  • engage: To start to fight with an enemy
  • guarantee: To promise to repair a broken product
  • contagious: Able to be passed on by touch
  • positive: Showing agreement or support for something
  • negative: The opposite to a positive electrical charge
  • brilliant: Having a great amount of intelligence or talent
  • community: Group of people who share a common idea or area
  • identify: To indicate who or what someone or something is
  • viral: Of or caused by a virus
  • quarantine: To isolate ill people to prevent disease spreading
  • sensitive: Taking offense easily; easily upset or hurt
  • irrelevant: Not important; not related to the topic
  • suppress: To prevent the display of emotion or feeling
  • result: Something produced through tests or experiments
  • widespread: Happening or existing in many places
  • distance: Lack of friendliness toward another person
  • guide: To help or advise someone about something
  • argument: Discussion in which you disagree with someone
  • frequently: Often; regularly
  • viable: Being capable of living, growing, and developing
  • peak: Part of a cap that sticks out over your eyes
  • trace: To make an outline to determine a shape
  • rapid: Moving or happening very quickly
  • lot: What happens to a person in life from chance; fate
  • downside: Negative aspect of something
  • uncertainty: Feeling of not really knowing what will happen
  • fact: Something that is known or proved to be true
  • nasal: Concerning, used for, or relating to the nose
  • catch: Amount of something that has been caught
  • point: An item to be discussed
  • outweigh: To be greater than in value or importance
  • virus: File secretly put on computers to cause harm
  • great: Very good; better than before
  • person: Man, woman or child
  • fast: In a way that is difficult to move or change
  • transmission: Part of car including gears affecting speed of car
  • widely: To a large degree; over a large range
  • undoubtedly: With certainty; without question; for sure
  • knowledge: Information, understanding, or skill
  • swab: To wipe or clean with water or a mop
  • time: Speed at which music is played; tempo
  • expensive: Costing a lot of money
  • people: Persons sharing culture, country, background, etc.
  • long: Person's name
  • infect: To introduce a computer virus to
  • health: (Person, company) being in a good condition; well
  • cost: A loss or damage occurring when meeting a goal
  • lineup: People arranged by police for identification
  • asymptomatic: Having no symptoms of illness or disease
  • handwash: Washing or laundering by hand not with a machine
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  • not found vocabularyNo vocabulary matches your filters
    • argument

      US /ˈɑrɡjəmənt/

      UK /ˈɑ:gjumənt/

      • Noun (Countable/Uncountable)
      • Discussion in which you disagree with someone
      • A presentation of reasons for or against an idea
      A2TOEIC
      More
    • as long as

      US /æz lɔŋ æz/

      UK /æz lɔŋ æz/

      • Conjunction
      • For the period that; provided that.
      • For the length of time that
      • Preposition
      • On the condition that; providing that.
      • Having the same length as.
      A1
      More
    • asymptomatic

      US

      UK

      • Adjective
      • Having no symptoms of illness or disease
      C1
      More
    • based on

      US

      UK

      • Phrasal Verb
      • To use something as the foundation or starting point for something else.
      • Preposition
      • Using something as the main idea or foundation.
      • Relying on something as evidence or justification.
      A1
      More
    • brilliant

      US /ˈbrɪljənt/

      UK /'brɪlɪənt/

      • Adjective
      • Having a great amount of intelligence or talent
      • Being very bright, like a diamond; shining
      • Noun
      • A diamond or other gem cut in a particular form with many facets to have exceptional brilliance.
      A2
      More
    • come back

      US /kʌm bæk/

      UK /kʌm bæk/

      • Phrasal Verb
      • To reply to someone, often forcefully
      • To be remembered
      A1
      More
    • community

      US /kəˈmjunɪti/

      UK /kə'mju:nətɪ/

      • Noun (Countable/Uncountable)
      • Group of people who share a common idea or area
      • A feeling of fellowship with others, as a result of sharing common attitudes, interests, and goals.
      • Adjective
      • Relating to or shared by the people in a particular area.
      • Shared or participated in by all members of a group
      A2
      More
    • contagious

      US /kənˈtedʒəs/

      UK /kənˈteɪdʒəs/

      • Adjective
      • Able to be passed on by touch
      • (of a disease) able to be transmitted by infection.
      C2
      More
    • distance

      US /ˈdɪstəns/

      UK /'dɪstəns/

      • Uncountable Noun
      • Lack of friendliness toward another person
      • Noun (Countable/Uncountable)
      • Amount of space between two places or things
      • A point or place that is far away.
      A2
      More
    • do over

      US /du ˈovɚ/

      UK /du: ˈəuvə/

      • Phrasal Verb
      • To repeat an action; do something again
      A1
      More
    • downside

      US /ˈdaʊnˌsaɪd/

      UK /ˈdaʊnsaɪd/

      • Noun
      • Negative aspect of something
      • The potential negative consequences or risks associated with a decision or action.
      B2
      More
    • end up with

      US

      UK

      • Phrasal Verb
      • To have something as a result.
      A1
      More
    • engage

      US /ɪn'gedʒ/

      UK /ɪn'ɡeɪdʒ/

      • Transitive Verb
      • To start to fight with an enemy
      • To hire someone for a task or job
      A2TOEIC
      More
    • false positive

      US

      UK

      • Noun
      • A test result which incorrectly indicates that a particular condition or attribute is present.
      • A test result that incorrectly indicates a disease or condition is present when it is not.
      B1
      More
    • for free

      US /fɔr fri/

      UK /fɔ: fri:/

      • Phrase
      • Without charge; at no cost.
      • Adjective
      • Available without payment.
      A2
      More
    • frequently

      US /ˈfrikwəntlɪ/

      UK /ˈfri:kwəntli/

      • Adverb
      • Often; regularly
      • Repeatedly or many times.
      A2TOEIC
      More
    • guarantee

      US /ˌɡærənˈti/

      UK /ˌɡærən'ti:/

      • Transitive Verb
      • To promise to repair a broken product
      • To promise that something will happen or be done
      • Countable Noun
      • A promise to repair a broken product
      • Promise that something will be done as expected
      A2TOEIC
      More
    • guide

      US /ɡaɪd/

      UK /ɡaɪd/

      • Transitive Verb
      • To help or advise someone about something
      • To control missile to hit a target by radio signal
      • Noun (Countable/Uncountable)
      • Book or a magazine containing information/advice
      • Person leading others visiting an unknown place
      A2TOEIC
      More
    • handwash

      US

      UK

      • Noun
      • Washing or laundering by hand not with a machine
      C1
      More
    • identify

      US /aɪˈdɛntəˌfaɪ/

      UK /aɪ'dentɪfaɪ/

      • Transitive Verb
      • To indicate who or what someone or something is
      • To say exactly what something is
      B1TOEIC
      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 on

      US

      UK

      • Phrase
      • To be involved in a secret or plan.
      • To be aware of something that is secret or not generally known.
      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
    • irrelevant

      US /ɪˈrɛləvənt/

      UK /ɪˈreləvənt/

      • Adjective
      • Not important; not related to the topic
      A2TOEIC
      More
    • lineup

      US /'laɪnˌʌp/

      UK /'laɪnʌp/

      • Noun
      • People arranged by police for identification
      C2
      More
    • nasal

      US /ˈnezəl/

      UK /ˈneɪzl/

      • Adjective
      • Concerning, used for, or relating to the nose
      • A speech sound produced with the soft palate lowered so that air flows through the nose.
      • Noun
      • Sound in speech that is produced through the nose
      C2
      More
    • negative

      US /ˈnɛɡətɪv/

      UK /'neɡətɪv/

      • Noun
      • The opposite to a positive electrical charge
      • In grammar, containing words such as 'no' or 'not'
      • Adjective
      • Being harmful, unwanted or unhelpful
      • In mathematics, being less than zero
      A2
      More
    • number of people

      US /ˈnʌmbɚ ʌv ˈpipəl/

      UK /ˈnʌmbə ɔv ˈpi:pl/

      • Phrase
      • The total count of individuals within a group or gathering.
      • A statistical figure representing the population size or a subset thereof.
      A1
      More
    • outweigh

      US /aʊtˈwe/

      UK /ˌaʊtˈweɪ/

      • Transitive Verb
      • To be greater than in value or importance
      B2
      More
    • over time

      US /ˈovɚ taɪm/

      UK /ˈəuvə taim/

      • Phrase
      • Gradually; as time passes.
      • During a long period.
      • Adverb
      • Gradually; as time passes.
      B1
      More
    • peak

      US /pik/

      UK /pi:k/

      • Noun
      • Part of a cap that sticks out over your eyes
      • The very top of a mountain
      • Intransitive Verb
      • To reach the highest or best point
      B1
      More
    • positive

      US /ˈpɑzɪtɪv/

      UK /ˈpɒzətɪv/

      • Adjective
      • Showing agreement or support for something
      • Being sure about something; knowing the truth
      • Noun
      • A photograph in which light areas are light and dark areas are dark
      A2
      More
    • quarantine

      US /ˈkwɔrənˌtin, ˈkwɑr-/

      UK /'kwɒrənti:n/

      • Transitive Verb
      • To isolate ill people to prevent disease spreading
      • Noun (Countable/Uncountable)
      • The place to isolate sick plants, animals
      C1
      More
    • rapid

      US /ˈræpɪd/

      UK /ˈræpɪd/

      • Adjective
      • Moving or happening very quickly
      • Noun
      • Rough and fast-moving part of a river
      B1
      More
    • regardless of

      US /rɪˈɡɑrdlɪs ʌv/

      UK /riˈɡɑ:dlis ɔv/

      • Phrase
      • Preposition
      • Without being affected or influenced by something; despite.
      A2
      More
    • result

      US /rɪˈzʌlt/

      UK /rɪ'zʌlt/

      • Noun
      • Something produced through tests or experiments
      • Final score of a competition, election or game
      • Intransitive Verb
      • To be the outcome of other causes and effects
      • To happen or exist as a consequence of something.
      A2
      More
    • sensitive

      US /ˈsɛnsɪtɪv/

      UK /'sensətɪv/

      • Adjective
      • Taking offense easily; easily upset or hurt
      • (Private information) needing careful treatment
      A2TOEIC
      More
    • significant

      US /sɪɡˈnɪfɪkənt/

      UK /sɪgˈnɪfɪkənt/

      • Adjective
      • Large enough to be noticed or have an effect
      • Having meaning; important; noticeable
      A2TOEIC
      More
    • suppress

      US /səˈprɛs/

      UK /səˈpres/

      • Transitive Verb
      • To prevent the display of emotion or feeling
      • To use force to prevent something happening
      B1TOEIC
      More
    • swab

      US /swɑb/

      UK /swɒb/

      • Transitive Verb
      • To wipe or clean with water or a mop
      • Noun
      • a small piece of soft material used for cleaning a cut or for taking a small amount of substance from a body, or the substance itself that can then be tested
      C1
      More
    • thanks to

      US /θæŋks tu/

      UK /θæŋks tu:/

      • Preposition
      • Because of; as a result of.
      A1
      More
    • trace

      US /tres/

      UK /treɪs/

      • Transitive Verb
      • To make an outline to determine a shape
      • To find someone or something that has disappeared
      • Uncountable Noun
      • Very small quantity of something
      • A mark or other sign of the former presence or passage of something.
      B1
      More
    • transmission

      US /trænsˈmɪʃən, trænz-/

      UK /trænsˈmɪʃn/

      • Noun
      • Part of car including gears affecting speed of car
      • Electronic signal sent by radio waves; broadcast
      B1
      More
    • uncertainty

      US /ʌnˈsə:tn:ti/

      UK /ʌn'sɜ:tntɪ/

      • Uncountable Noun
      • Feeling of not really knowing what will happen
      • Lack of confidence; doubt.
      B2TOEIC
      More
    • undoubtedly

      US /ʌn'daʊtɪdlɪ/

      UK /ʌn'daʊtɪdlɪ/

      • Adverb
      • With certainty; without question; for sure
      B1
      More
    • viable

      US /ˈvaɪəbəl/

      UK /ˈvaɪəbl/

      • Adjective
      • Being capable of living, growing, and developing
      B1TOEIC
      More
    • viral

      US /ˈvaɪrəl/

      UK /ˈvaɪrəl/

      • Adjective
      • Of or caused by a virus
      • Becoming very popular by circulating quickly from person to person, especially through the Internet.
      B2
      More
    • virus

      US /ˈvaɪrəs/

      UK /'vaɪrəs/

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

      US /ˈwaɪdˈsprɛd/

      UK /ˈwaɪdspred/

      • Adjective
      • Happening or existing in many places
      A2TOEIC
      More
    • zero in

      US /ˈzɪro ɪn/

      UK /ˈziərəu in/

      • Phrasal Verb
      • To focus on a target
      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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    B1
    #pcr#testing#sensitive#test#covid#rapid

    Why LESS Sensitive Tests Might Be Better

    0
    林宜悉 posted on 2026/04/08
    Ever wondered if faster, less sensitive COVID tests could actually be better for mass screening? This video dives into the surprising tradeoffs, explaining how a Harvard study and MinutePhysics break down the science behind PCR sensitivity and public health strategies. You'll pick up advanced vocabulary related to testing and public health, plus get a handle on complex sentence structures used in scientific explanations!

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