Vocabulary Cards B2
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B2 adjective
Unconditional
无条件的
Meaning
not subject to any conditions; complete and absolute
Example
She offered her unconditional support to her friend in need.
B2 adjective
Unconfirmed
未确认; 未验证;
Meaning
not confirmed as true or definite; not verified or substantiated
Example
The report remains unconfirmed until we receive official verification.
B2 adjective
Unconscious
昏迷; 无意识
Meaning
not awake and aware of one's surroundings; done or existing without one realizing
Example
The patient was unconscious for several hours after the surgery.
B2 adverb
unconsciously
无意识地
Meaning
without being aware of one's actions or surroundings
Example
She unconsciously tapped her foot to the rhythm of the music.
B2 noun
unconsciousness
无意识
Meaning
the state of being unaware of and unable to respond to one's surroundings
Example
After the accident, he was in a state of unconsciousness for several hours.
B2 adjective
uncontrolled
无法控制的
Meaning
not restrained or managed; lacking control
Example
The wildfire spread in an uncontrolled manner, causing widespread damage.
B2 adjective
unconventional
非传统的
Meaning
not based on or conforming to what is generally done or believed
Example
Her unconventional approach to teaching inspired her students to think creatively.
B2 adjective
Unconvincing
不可信
Meaning
failing to persuade or impress; not believable or credible
Example
His excuse for being late was completely unconvincing.
B2 adjective
uncooperative
不合作的
Meaning
not willing to help or work with others; unhelpful
Example
The witness was uncooperative and refused to answer questions.
B2 adjective
uncoordinated
不协调; 笨拙
Meaning
lacking coordination, not well-organized or clumsy in movement
Example
His movements were uncoordinated, making him prone to accidents.
B2 verb
uncover
揭示
Meaning
to reveal something that was hidden or secret
Example
The investigation uncovered new evidence.
B2 adjective
Undecided
未决定的; 不确定的
Meaning
not having made a decision; uncertain
Example
She was undecided about which college to attend.
B2 adjective
Undeniable
不容置疑
Meaning
impossible to deny or dispute; clearly true
Example
The evidence of his guilt was undeniable.
B2 noun
underclothes
内衣
Meaning
Clothing worn beneath outer clothes, such as underwear or lingerie
Example
He folded his underclothes neatly before packing them.
B2 verb
underestimate
低估
Meaning
To judge something as less important or smaller than it really is.
Example
Never underestimate the power of teamwork.
B2 verb
undergo
经历
Meaning
to go through something, especially something unpleasant or difficult
Example
She had to undergo surgery to recover.
B2 noun
undergraduate
本科生
Meaning
a student who has not yet earned a bachelor's degree
Example
She is an undergraduate studying computer science.
B2 adjective
underlying
基本的
Meaning
basic or hidden but important; forming the foundation of something
Example
The underlying reason for the conflict was never addressed.
B2 verb
undermine
削弱
Meaning
to gradually weaken or damage something or someone
Example
Constant criticism can undermine a child's confidence.
B2 verb
underscore
强调
Meaning
to emphasize or highlight something
Example
The incident underscored the need for better safety measures.
B2 verb
undertake
承担
Meaning
to commit to and begin a task or project; to take on responsibility
Example
She decided to undertake a challenging project.
B2 noun
undertaking
事业
Meaning
A task, project, or responsibility that someone agrees to do.
Example
Starting a new company is a difficult undertaking.
B2 adjective
Undesirable
不受欢迎的; 有害的; 令人不快的
Meaning
not wanted or wished for; harmful or unpleasant
Example
The new policy had several undesirable consequences.
B2 adjective
Undeveloped
未开发的; 未成熟的; 原始的
Meaning
not yet developed; immature or primitive
Example
The undeveloped land was later turned into a park.