Vocabulary Cards B2
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B2 adjective
Unreliable
不可靠的; 不能被信任或依赖
Meaning
not dependable; not able to be trusted or relied upon
Example
The old car is unreliable and breaks down frequently.
B2 adjective
unresolved
未解决的
Meaning
not solved or settled; remaining undecided or unclear
Example
The dispute remains unresolved despite several meetings.
B2 noun
Unrest
不安；动荡；社会或政治动乱
Meaning
a state of dissatisfaction and disturbance; social or political disorder
Example
The economic crisis led to widespread social unrest.
B2 adjective
Unripe
未成熟的
Meaning
not fully developed or matured; not ready to be eaten
Example
The unripe bananas will turn yellow in a few days.
B2 adjective
Unseen
看不见的；未曾看到或注意到的
Meaning
not previously seen or noticed; invisible; hidden
Example
The unseen forces of nature can be very powerful.
B2 adjective
Unskilled
无技能的; 无技术的工人
Meaning
lacking technical training or ability; not requiring special skills
Example
Many unskilled workers are looking for training opportunities.
B2 adjective
Unstable
不稳定
Meaning
likely to change; not steady or secure; unsteady
Example
The unstable economy made people worried about their jobs.
B2 adjective
unsteady
不稳定的
Meaning
not firm or stable; likely to change or fail
Example
She felt unsteady on her feet after the long journey.
B2 adjective
Unsuitable
不适合; 不合适
Meaning
not fitting or appropriate for a particular purpose or situation
Example
This formal dress is unsuitable for a casual beach party.
B2 adjective
Unthinkable
难以想象的
Meaning
impossible to conceive or imagine; beyond belief or consideration
Example
It was unthinkable that such a tragedy could happen in our peaceful town.
B2 verb
untie
解开
Meaning
to loosen or remove a knot or binding; to release something that is tied
Example
She untied the rope to free the boat.
B2 verb
unveil
揭示
Meaning
to reveal or disclose something, especially in a formal manner
Example
The company will unveil a new product next week.
B2 adjective
Unwelcome
不受欢迎的; 不想要的; 不邀请的
Meaning
not wanted or accepted; not invited or pleasant
Example
The unwelcome news ruined their vacation plans.
B2 adjective
Unwilling
不愿意的; 不情愿的;
Meaning
not ready to do something; reluctant; not wanting to do
Example
He was unwilling to share his secret with anyone.
B2 adverb
unwillingly
不情愿地
Meaning
in a way that shows reluctance or lack of desire; not willingly
Example
She unwillingly agreed to attend the meeting.
B2 adjective
unwise
不明智
Meaning
Showing poor judgment; not sensible or prudent.
Example
It would be unwise to invest all your money in one company.
B2 adjective
Unworthy
不配; 没有价值
Meaning
not deserving respect or attention; lacking worth or merit
Example
He felt unworthy of such praise and recognition.
B2 noun
up-keep
维护
Meaning
The process or cost of maintaining something in good condition.
Example
The upkeep of the old house is very expensive.
B2 adjective
Uphill
困难的; 需要巨大努力的; 向上的倾斜
Meaning
difficult; requiring great effort; sloping upward
Example
Learning a new language can be an uphill battle.
B2 verb
uphold
维护
Meaning
to maintain or support a principle, law, or decision
Example
The judge promised to uphold justice at all costs.
B2 adjective
Upright
诚实且道德正确；垂直或挺立的姿势
Meaning
honest and morally correct; vertical or erect in position
Example
She is known for being an upright and honest businesswoman.
B2 noun
urbanization
城市化
Meaning
The process by which towns and cities are formed and become larger as more people begin living and working in central areas.
Example
Urbanization leads to more developed infrastructure.
B2 verb
urge
催促
Meaning
to strongly encourage or try to persuade someone to do something
Example
Doctors urge patients to exercise regularly.
B2 noun
Urgency
紧急
Meaning
the quality of requiring immediate action or attention; pressing importance
Example
The urgency of the situation required immediate medical attention.