Vocabulary
- in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
- figure out: To understand the behavior of someone
- have to: Must do
- think of: To look on as (being something specific); consider
- man's best friend: A dog, considered faithful and loyal to humans.
- also known as: Also called; alternatively named.
- in turn: One after the other in a sequence or rotation.
- in terms of
- by chance: Accidentally; without planning.
- instead of: When one thing is replaced by another
- for the rest: Concerning the remaining people or things.
- together with: In addition to; along with.
- as well as: Also; in addition to
- significant: Large enough to be noticed or have an effect
- immune: Having a special protection from, e.g. the law
- figure: To appear in a game, play or event
- pandemic: (of a disease) existing in almost all of an area or in almost all of a group of people, animals, or plants
- trigger: Lever on a gun that you pull to fire
- disorder: State of confusion or a lack of organization
- insomnia: Inability to sleep for many nights
- dopamine: Drug used to treat shock and hypotension
- develop: To explain something in steps and in detail
- random: Chosen, done without a particular plan or pattern
- appetite: Feeling of hunger or desire for something
- disease: Illness that affects a person, animal, or plant
- initially: At first; originally
- mutation: Change that changes genetic structure
- prime: To get a person ready for; prepare someone
- function: Social event, or party such as a wedding
- stimulate: To arouse or excite emotionally
- affect: To cause a change in something else
- condition: To improve something to make it better
- primitive: Lacking a written language and advanced technology
- genetic: Of, relating to, or controlled by genes
- paralysis: Inability to move or feel all or part of the body
- brain: To strike someone forcefully on the head
- region: Part of a country, of the world, area, etc.
- seemingly: Appearing to be but may not actually be; probably
- reaction: Bodily response to a drug or something eaten
- release: To free someone from a responsibility or burden
- regulate: To control something with rules or laws
- responsible: Being the cause of something that has occurred
- serotonin: A neurotransmitter in the brain that helps regulate mood, sleep, appetite, and emotional well-being; often referred to as the "feel-good" hormone.
- excitement: When people feel very happy and enthusiastic
- nerve: Fibers in the body that enable feeling, movement
- produce: Fresh foods such as fruits and vegetables
- neurological: Concerning, used in or practicing neurology
- fall: Season after summer and before winter; Autumn
- strange: Unusual or odd; surprising because unexpected
- activate: To cause to happen; cause a chemical reaction
- chemical: Basic substance produced by mixing elements
- breakthrough: Important discovery in doing something difficult
- storm: To act violently or angrily
- important: Having power or authority
- control: A device designed to operate a machine
- fact: Something that is known or proved to be true
- system: Set of organized, planned ideas that work together
- receptor: A nerve ending that changes stimuli into impulses
- seizure: Act of taking control of something by force
- virus: File secretly put on computers to cause harm
- hypothalamus: Basal part of the diencephalon governing autonomic nervous system
- include: To make someone, something part of a group
- voluntarily: Of your own free will; not because you were forced
- categorize: To distribute into classes or the same type
- abnormal: Not normal, not typical, not usual, not regular
- fast: In a way that is difficult to move or change
- respective: Belonging to each of two or more persons or things
- gene: Part of cell controlling development of a thing
- physiology: Ways in which the parts of a living thing operate
- infect: To introduce a computer virus to
- swine: A pig
- flu: Illness causing headache, fever etc.
Get the full experience in the app
Learn anywhere with detailed sentence and usage analysis
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.
Get the full experience in the app
Look up words anytime with pronunciation, part of speech, and usage
brave
US/brev/
UK/breɪv/
adj.Brave
v.t.To bravely face
A2 Elementary
Get the full experience in the app
Practice speaking anytime and get instant pronunciation feedback
Try this speaking exercise.
Try practicing with this sentence.
80
Here's What Causes Narcolepsy
0
Jerry Liu posted on 2019/07/20Ever wondered what causes narcolepsy? This video dives deep into the science behind this fascinating sleep disorder, exploring the role of hypocretin and the hypothalamus. You'll pick up some advanced vocabulary and learn about groundbreaking medical research, including the famous 'dog model'!
Learn this video on the APP!
The VoiceTube App has more in-depth practice for videos!
