Vocabulary
- talking about: To discuss a particular topic.
- out of the way: Remote; isolated.
- at once: Immediately; without delay
- check out
- subscribe: To regularly pay to receive a service
- bunch: A group of things of the same kind
- common: Area in a city or town that is open to everyone
- comment: Something you say, giving an opinion; remark
- exist: To be present, alive or real
- function: Social event, or party such as a wedding
- similar: Nearly the same; alike
- explain: To make clear or easy to understand by describing
- section: A part of a whole
- transition: Change from one state, movement, place to another
- comprehensive: Including most or all things
- rest: Time when one relaxes, sleeps, or is inactive
- convention: Official agreement between two or more countries
- topic: Subject or issue people talk or write about
- absolute: Complete; total; pure; not limited in any way
- leave: To go away from; depart
- haven: Place where people can feel safe and happy
- square: Shape with 4 equal length sides and 4 equal angles
- order: Religious or social group, as of nuns
- infinitely: Continuing forever without end; very great
- great: Very good; better than before
- find: To become aware of something that is happening
- infinity: State of being without end; endless time, space
- smooth: Moving without stops and starts
- make: To arrange or prepare something e.g. dinner
- start: First time or place that a thing exists; beginning
- understand: To know the meaning of language, what someone says
- check: Paper showing how much you owe at a restaurant
- list: To lean to one side, like a boat or ship
- continuous: Happening, existing, or performed without stops
- video: Recording capturing action with sound
- derivative: Not from original ideas; from somewhere else
- helpful: Doing things that help someone
- notation: Set of written signs are used in music or math
- math: Study or science of numbers and shapes
- sine: Angle's ratio of side opposite hypotenuse
- pi: The ratio of the circumference to the diameter
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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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What is a smooth function?
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陳昱安 posted on 2025/11/10Ever wondered what makes a function 'smooth'? This video from Walton Pi dives into differentiability and higher derivatives, perfect for boosting your math vocabulary! You'll get a clear explanation of concepts like C-infinity functions and see some cool counterexamples along the way.
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