Vocabulary
- look at: To use your eyes to focus on something
- at scale: In large quantities; with significant reach or impact.
- in the world: Used to emphasize a question expressing surprise, confusion, or disbelief.
- around the world: In or to many countries.
- in particular: Specifically; especially.
- for example: As an illustration or instance.
- by accident: Without intending to; unintentionally.
- figure out: To understand the behavior of someone
- under the microscope: Being examined very carefully or in great detail.
- clock in: To record the time of one's arrival at work, typically using a time clock.
- in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
- think about: To consider something carefully.
- work out
- positive side: The good or beneficial aspect of something, especially something that is generally considered negative.
- lead to: To result in some action
- for sure: Definitely; certainly; without a doubt.
- rather than: More exactly; more correctly
- in the absence of: When someone or something is not present or available.
- other places: Different locations or areas
- extraordinary: Beyond what is ordinary; very unusual; remarkable
- progress: To move forward or toward a place or goal
- basically: Used before you explain something simply, clearly
- obesity: State of being so fat it can harm your health
- scale: Size, level, or amount when compared
- artificial: Dishonest, to seem fake, not sincere
- intelligence: Collection of secret information about something
- bacteria: The very small creatures that can cause disease
- implement: To start to do something you plan to do
- dementia: Illness characterized by loss of memory
- addiction: Lack of control the overuse of something e.g. drugs
- federal: Consisting of several united states
- charge: To run quickly toward someone to attack them
- vaccine: Shot using weak disease cells to stop same disease
- scientific: Concerning academic study of the physical world
- create: To make, cause, or bring into existence
- blow: To move something using air
- accelerate: To cause to occur earlier than expected
- project: To predict what will happen in the future
- energy: Physical or mental strength
- utter: To make a particular sound; speak
- development: Act or process of growing bigger or more advanced
- cement: Building material made from gray powder, water
- dioxide: An oxide containing two oxides per molecule
- invention: Something new that is different from other things
- colony: Group (bees, etc.) that live in the same place
- assemble: To put parts together to make a complete unit
- carbon: Chemical element with an atomic number of 6
- century: Period of 100 years
- important: Having power or authority
- build: Your physical shape; physique
- germ: Tiny organism that can cause sickness and disease
- government: Group of people and system that rule a nation
- program: To make someone act or think in a certain way
- solar: Concerning the sun, or its heat
- operation: Business or company, or its activities
- efficiently: In a way that does not create waste
- pull: Act of breathing in smoke, as from a pipe
- nuclear: Concerning or involving the center of an atom
- land: Region or country
- invent: To create something such as a story or excuse
- grow: To get bigger and more mature; make plants do this
- discover: To find something new that was not known before
- pharmaceutical: Concerning the science of drugs and medicines
- implementation: A practical means for accomplishing something
- world: All the humans, events, activities on the earth
- side: To decide to agree with one point, not the other
- lesson: Something done to learn or teach something; class
- country: An area of land that is controlled by a government
- lose: To be unable to keep in check or control something
- datum: Item of factual information
- spun: To make a ball rotate when throwing it
- lab: Short for 'laboratory'
- warp: Twist or bend in something normally straight
- bacterial: Concerning or caused by bacteria
- microscope: Scientific device making small things look bigger
- conflate: To combine two or more things to make a new entity
- penicillin: Medicine that treats infection by killing bacteria
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
The laboratory accident that saved 500 million lives | Derek Thompson
0
林宜悉 posted on 2025/07/18Did you know a lab accident could save millions of lives? This fascinating talk dives into the incredible story of penicillin and how scaling up innovations, like Operation Warp Speed, is key to real-world impact. You'll pick up advanced vocabulary and gain insights into historical breakthroughs and modern policy!
Learn this video on the APP!
The VoiceTube App has more in-depth practice for videos!
