C2 adjective /ˌʌnprəˈpɪʃəs/

unpropitious

不利

Meaning

Not giving or indicating a good chance of success; unfavorable.

Example

The team began their journey under unpropitious weather conditions.

团队在不利的天气条件下开始了他们的旅程。

C1 noun ˌʌndərˈprɪvəlɪdʒd ɡruːps

underprivileged groups

贫困群体

Meaning

Groups of people who lack basic necessities or advantages that are available to other members of society.

Example

Underprivileged groups benefit from social initiatives.

贫困群体从社会倡议中受益。

C1 noun /ʌnˈfeɪθfʊlnəs/

unfaithfulness

不忠

Meaning

the quality of being disloyal or not faithful; breach of trust or fidelity

Example

His unfaithfulness led to the end of their marriage.

他的不忠导致了他们婚姻的结束。

B1 noun /ˈjuːnjən/

Union

联合

Meaning

the action of joining or combining; a political unit formed from separate states

Example

The union of the two companies created a powerful corporation.

两家公司的联合创造了一个强大的公司。

C1 adjective /ˌʌndərɪkˈspoʊzd/

underexposed

曝光不足，忽视的

Meaning

insufficiently exposed to light (in photography) or not given enough attention

Example

The photo was underexposed and looked too dark.

照片曝光不足，看起来太暗了。

C2 adjective /ˌʌnrɪˈmɪtɪŋ/

unremitting

不断的

Meaning

Never relaxing or stopping; persistent.

Example

Her unremitting efforts finally paid off.

她不懈的努力终于得到了回报。

B2 adjective /ʌnˈfɪt/

Unfit

不适合; 不适当;

Meaning

not in good physical condition; unsuitable or inappropriate

Example

He was declared unfit for military service due to his poor health.

由于健康状况差，他被宣判不适合军事服务。

A2 noun /ˈjuːnɪt/

unit

单元

Meaning

an individual thing or person regarded as a single and complete entity

Example

Each unit in the production line is carefully tested.

生产线上的每个单元都经过仔细测试。

B1 adjective /ˌʌnɪmˈpɔːrtənt/

unimportant

不重要的

Meaning

not having much value, significance, or influence

Example

The detail seemed unimportant compared to the main issue.

与主要问题相比，这个细节显得不重要。

C1 adjective /ʌnˈkɒm.prə.maɪ.zɪŋ/

Uncompromising

不妥协, 固执

Meaning

unwilling to change one's views or to agree about something; showing an unwillingness to make concessions to others

Example

He was uncompromising in his demand for a full apology.

他在要求完全道歉时非常坚决。

B2 noun ˌɜːbənaɪˈzeɪʃən

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.

城市化导致更先进的基础设施。

A2 adjective /ˈʌɡ.li/

Ugly

丑陋的; 可憎的; 可怕的

Meaning

unpleasant or repulsive in appearance; morally reprehensible

Example

The old building looked ugly after years of neglect.

这座老建筑在多年疏忽之后看起来很丑。

C1 noun /ʌnkənˈsɜːrn/

Unconcern

漠不关心

Meaning

lack of worry or interest; indifference

Example

She showed complete unconcern about the criticism.

她对批评表现出了完全的漠不关心。

B2 verb /ˌʌndərˈteɪk/

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.

她决定承担一个具有挑战性的项目。

C1 adverb /ʌnˈnætʃrəli/

unnaturally

不自然地

Meaning

in a way that is not natural or normal; excessively or strangely

Example

He smiled unnaturally, making everyone feel uncomfortable.

他不自然地笑了，让每个人都感到不舒服。

C2 noun /ˈjuːnɪvəˌlɛns/

univalence

单价性

Meaning

The state of having a single valence or combining power, especially in chemistry.

Example

Hydrogen is characterized by its univalence in chemical reactions.

氢气在化学反应中以其单价性为特点。

B2 noun /ʌnˈsɜːrtənti/

Uncertainty

不确定性; 怀疑或缺乏确信

Meaning

the state of being uncertain; doubt or lack of sureness

Example

The uncertainty about the weather delayed our trip.

关于天气的不确定性延迟了我们的旅行。

A2 adjective /ˈjuːʒəl/

usual

常见

Meaning

habitually or typically occurring or done

Example

It’s our usual meeting spot.

这是我们常见的会议地点。

C1 verb /ˌʌndərˈvæljuː/

undervalue

低估

Meaning

To assign too low a value or importance to something or someone.

Example

She felt that her boss consistently undervalued her contributions.

她感觉到她的老板总是低估她的贡献。

C1 noun /ˌʌl.tɪˈmeɪ.təm/

Ultimatum

最后通牒

Meaning

a final demand or statement of terms, the rejection of which will result in retaliation

Example

The boss gave him an ultimatum: improve or be fired.

老板给了他一个最后通牒：要么改进，要么被解雇。

B1 adjective /ʌnˈkaɪnd/

Unkind

残忍; 不友好

Meaning

cruel; not nice or caring toward others

Example

It was unkind of him to make fun of her appearance.

他取笑她的外貌，真是太不友善了。

B2 adjective /ˌʌnkənˈvɪnsɪŋ/

Unconvincing

不可信

Meaning

failing to persuade or impress; not believable or credible

Example

His excuse for being late was completely unconvincing.

他因迟到而给出的借口完全不可信。

C1 adjective ʌnɪnˈhæbɪtəbəl

uninhabitable

不可居住

Meaning

Not suitable or safe for people to live in.

Example

Rapid urbanization can make cities uninhabitable.

快速城市化可能使城市变得无法居住。

C1 verb /ʌnˈroʊl/

unroll

展开

Meaning

to open something that is rolled up; to spread out gradually

Example

She unrolled the map on the table to find the route.

她把地图在桌子上展开来寻找路线。

C1 adjective /ˌʌnˈɪntɪmeɪtɪŋ/

unintimating

没有暗示

Meaning

Not giving a hint or suggestion; not indicating.

Example

His unintimating tone gave no clue of his true feelings.

他的没有暗示的语气没有透露他真正的感受。

C1 adjective + noun ʌnˈpresɪdentɪd ˈnɒlɪdʒ

unprecedented knowledge

前所未有的知识

Meaning

Information or understanding that has never been obtained or achieved before.

Example

Artemis will provide unprecedented knowledge about the solar system.

阿尔忏将提供关于太阳系的前所未有的知识。

B2 adjective /ʌnˈiːkwəl/

Unequal

不平等; 不公正;

Meaning

not the same in quantity, size, or value; not fair or just

Example

The distribution of wealth is unequal in many countries.

财富的分配在许多国家是不平等的。

C1 adjective /ʌnˈʃeɪkən/

Unshaken

坚定不移; 坚固

Meaning

not disturbed or affected; firm and steady; unwavering

Example

Her faith remained unshaken despite all the challenges.

尽管面临所有挑战，她的信念依然坚定不移。

C2 noun /ˈʌŋɡwənt/

unguent

药膏

Meaning

A soothing or healing ointment applied to the skin.

Example

The doctor applied an unguent to heal the burn.

医生涂抹了药膏来治愈烧伤。

C1 adjective /ˈʌpərˌmoʊst/

uppermost

最高

Meaning

situated at the highest place or most important

Example

Her family's safety was uppermost in her mind during the crisis.

她在危机期间心里最重要的是家庭的安全。

B2 noun ˌjuːtɪlaɪˈzeɪʃən

utilization

利用

Meaning

The action of making practical and effective use of something.

Example

Increased plastic utilization calls for better waste management.

塑料的使用增加要求更好的废物管理。

C2 noun /ɜːrˈbænɪti/

urbanity

都市气质

Meaning

refined courtesy, elegance, and sophistication in manner

Example

Her urbanity made her popular among diplomats and leaders.

她的都市气质让她在外交官和领导人中非常受欢迎。

B2 adjective /ʌnˌkənˈdɪʃ.ən.əl/

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.

她在朋友需要时提供了无条件的支持。

C1 adjective ʌnˈpær.ə.leld

Unparalleled

无与伦比

Meaning

Having no equal; unmatched, peerless, and supreme in quality or achievement.

Example

The unparalleled beauty of the Taj Mahal amazes visitors.

泰姬陵无与伦比的美丽使游客惊叹。

C2 verb /ʌpˈhiːv/

upheave

抬起

Meaning

to lift or raise something forcefully; to cause to rise suddenly

Example

The workers had to upheave the heavy stone to clear the path.

工人们不得不抬起重石来清理道路。

C1 adjective /ʌlˈtɪəriər/

ulterior

隐藏的动机

Meaning

hidden or secret, often with a selfish motive

Example

He invited her with an ulterior motive.

他带着隐藏的动机邀请了她。

C1 adjective /ˌʌnɪˈkwɪvəkəl/

unequivocal

明确

Meaning

Leaving no doubt; clear and unambiguous

Example

She gave an unequivocal answer to the question.

她对问题给出了明确的回答。

C1 noun /ʌnɪmˈpɔːrtəns/

unimportance

不重要

Meaning

the state or quality of being insignificant or not important

Example

He dismissed the issue with a sense of unimportance.

他以無關緊要的態度忽略了這個問題。

C1 adjective /ʌnˈtaɪərɪŋ/

Untiring

不知疲倦的; 坚持不懈的; 永不止步的

Meaning

continuing without stopping; persistent; tireless

Example

Her untiring efforts finally led to success.

她的不知疲倦的努力最终带来了成功。

A1 adjective /juːzd/

used

二手

Meaning

having already been used

Example

This is a used car.

这是一辆二手车。

A2 adjective /ʌnˈtaɪdi/

Untidy

凌乱的; 无序的;

Meaning

not neat or orderly; messy and disorganized

Example

Her untidy room was filled with clothes scattered everywhere.

她凌乱的房间充满了四处散落的衣服。

B1 adjective /ˌʌnˈɪntrəstɪŋ/

uninteresting

无趣的

Meaning

not holding attention or curiosity; boring

Example

The lecture was uninteresting and difficult to stay focused on.

这次讲座很无趣，很难集中注意力。

B1 adjective /ˈʌpˌkʌmɪŋ/

upcoming

即将到来

Meaning

about to happen or appear

Example

The upcoming event will be held next week.

即将到来的活动将在下周举行。

B2 adjective /ʌnəˈfreɪd/

unafraid

无畏

Meaning

Not feeling fear; brave or courageous

Example

She walked into the dark room, unafraid of what might be inside.

她走进黑暗的房间，无畏里面可能有什么。

B2 adjective /ʌnˈkwɒl.ɪ.faɪd/

Unqualified

不合格的; 无资格的;

Meaning

not having the necessary skills or qualifications; complete or absolute

Example

He was unqualified for the engineering position due to lack of experience.

他因缺乏经验而不适合这个工程职位。

B1 adjective /ʌnɪmˈplɔɪd/

Unemployed

失业

Meaning

without a job; not having paid work

Example

He has been unemployed for six months now.

他已经失业六个月了。

B1 adjective /ʌnˈfɔːr.tʃən.ət/

Unfortunate

不幸的；遗憾的

Meaning

having bad luck; regrettable or unlucky

Example

It was unfortunate that the meeting was cancelled at the last minute.

很不幸的是，会议在最后一刻被取消了。

B2 adjective /ʌnˈkɒn.ʃəs/

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.

病人在手术后昏迷了几个小时。

B2 adjective /ʌnˈiːzi/

Uneasy

不安的; 焦虑的; 不舒服的

Meaning

worried; anxious; uncomfortable; restless

Example

She felt uneasy about walking alone at night.

她在夜晚独自行走时感到不安。

C1 adjective /ˌʌnɪmˈplɔɪəbəl/

unemployable

不适合就业

Meaning

Not able to be employed; lacking the skills or qualities necessary for employment

Example

Due to his criminal record, he was considered unemployable in most companies.

由于他的犯罪记录，他在大多数公司被认为是不适合就业。

B1 adjective /ʌnˈwel/

Unwell

不舒服; 生病

Meaning

not in good health; feeling sick or ill

Example

She has been feeling unwell since yesterday.

她从昨天开始感到不舒服。

C1 verb /ˌʌndərˈlaɪ/

underlie

位于...之下

Meaning

to be the hidden cause or basis of something

Example

Strong cultural traditions underlie the community's practices.

强大的文化传统是社区实践的基础。

C2 adjective /ɜːrˈbeɪn/

urbane

都市的

Meaning

showing polished manners, refinement, and sophistication

Example

He was an urbane gentleman who charmed everyone at the party.

他是一个都市绅士，在派对上迷住了所有人。

C2 noun /ˈʌndərlɪŋ/

underling

下属

Meaning

a person of low rank or importance; a subordinate

Example

The manager ordered his underlings to finish the task quickly.

经理命令他的下属快速完成任务。

C2 adjective /ˌʌnsɛrəˈmoʊniəs/

unceremonious

不拘礼节/粗鲁

Meaning

Done without formality or courtesy; abrupt or rude.

Example

He made an unceremonious exit from the party.

他从派对上不拘礼节地离开。

B2 adjective /ˈʌpˌraɪt/

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.

她以诚实和正直的商业女性而闻名。

B2 adjective /ʌnˈlɔːfl/

Unlawful

非法; 不合法

Meaning

not authorized by law; illegal

Example

The court declared the search unlawful.

法院宣布搜索是非法的。

C2 verb /ˈʌndərˌmæn/

underman

人员不足

Meaning

to supply with fewer workers or personnel than needed

Example

The hospital was undermanned during the flu outbreak.

医院在流感爆发期间人手不足。

C2 adjective /ʌnˈmɪtɪɡeɪtɪd/

unmitigated

完全

Meaning

absolute; not lessened or moderated

Example

The meeting was an unmitigated disaster.

会议是一次完全的灾难。

C2 noun /ˈʌp.wel.ɪŋ/

upwelling

上升流

Meaning

An oceanographic phenomenon that involves wind-driven motion of dense, cooler, and nutrient-rich water towards the ocean surface.

Example

Upwelling brings nutrients to the ocean surface.

上升流将营养物质带到海洋表面。

A1 noun /ˌjuːnɪˈvɜːrsɪti/

university

大学

Meaning

an institution of higher education and research, which grants academic degrees

Example

She is studying law at the university.

她在大学学习法律。

B1 adjective /ˈɜːrdʒənt/

Urgent

紧急

Meaning

requiring immediate action or attention; pressing

Example

The patient needs urgent medical attention.

病人需要紧急医疗照顾。

C1 adjective /ʌnˈkuːθ/

uncouth

粗鲁

Meaning

Lacking good manners, refinement, or grace; awkward or rough.

Example

His uncouth behavior shocked the guests at the party.

他粗鲁的行为让聚会上的客人感到震惊。

C1 adjective /ʌnˈkleɪmd/

Unclaimed

未认领的; 未要求的; 被遗弃或无主的

Meaning

not claimed by anyone; not demanded or requested; abandoned or ownerless

Example

The unclaimed luggage was stored in the airport's lost property department.

未认领的行李被存放在机场的失物招领处。

B2 verb /ʌnˈveɪl/

unveil

揭示

Meaning

to reveal or disclose something, especially in a formal manner

Example

The company will unveil a new product next week.

公司将在下周揭示一款新产品。

C1 verb /ʌpˈruːt/

uproot

拔除

Meaning

To pull something out of the ground; to remove or displace completely.

Example

They uprooted the old tree from the garden.

他们从花园里把老树拔了出来。

B2 adjective /ʌnˈbiːtən/

Unbeaten

不败的; 未被击败的

Meaning

not defeated; having never lost; undefeated

Example

The team remains unbeaten this season.

这个团队本赛季保持不败。

B2 adjective /ˌʌnrɪˈlaɪəbl/

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.

这辆老车不可靠，常常坏掉。

C1 adjective /ˌʌnəkˈnɒlɪdʒd/

unacknowledged

未承认的

Meaning

Not recognized, admitted, or accepted; ignored or unnoticed

Example

Her contributions to the project went unacknowledged.

她对项目的贡献未被承认。

B1 adjective /ˌʌnɪkˈspektɪd/

Unexpected

出乎意料的; 令人惊讶的

Meaning

not expected or anticipated; surprising

Example

The unexpected news left everyone speechless.

出乎意料的消息让所有人都哑口无言。

C2 adjective /ˌʌnəˈʃʊəd/

unassured

不确定的

Meaning

Lacking confidence or certainty.

Example

She gave an unassured answer during the interview.

她在面试中给出了一个不确定的答案。

C1 adjective /ˌʌnkɒnstɪˈtuːʃənəl/

Unconstitutional

违宪的

Meaning

not in accordance with a political constitution; violating constitutional principles

Example

The court declared the new law unconstitutional.

法院宣布这项新法律违宪。

C2 adjective /ˈʌŋk.tʃu.əs/

unctuous

阿谀奉承

Meaning

Excessively flattering or ingratiating; oily in texture.

Example

His unctuous tone made everyone uncomfortable.

他那种阿谀奉承的语气让每个人都感到不舒服。

B2 adjective /ʌnˈberəbəl/

Unbearable

无法忍受

Meaning

too painful, annoying, or unpleasant to tolerate; impossible to endure

Example

The heat in the desert was unbearable.

沙漠中的热度是无法忍受的。

C2 noun /ˌjuːzɜːrˈpeɪʃən/

usurpation

篡夺

Meaning

The act of taking someone's power or property illegally or by force.

Example

The general's usurpation of the presidency led to political unrest.

将军对总统职位的篡夺导致了政治动荡。

B1 adjective /ʌnˈfeər/

Unfair

不公平; 不正当;

Meaning

not right or just; treating people in a way that favors some over others

Example

It's unfair to blame her for something she didn't do.

指责她做了她没有做的事是不公平的。

C1 noun ˈʌp.raɪ.zɪŋ

uprising

起义

Meaning

An act of resistance or rebellion; a revolt against an authority or government.

Example

The uprising marked the beginning of the revolution.

起义标志着革命的开始。

C1 adjective /ˌʌnsəˈfɪstɪˌkeɪtɪd/

unsophisticated

不复杂

Meaning

Lacking worldly experience, refinement, or complexity.

Example

The villagers led an unsophisticated but happy life.

村民过着简单而幸福的生活。

B2 adjective /ʌnˈhɜːrt/

unhurt

毫发无损

Meaning

Not injured or harmed.

Example

She walked away from the accident unhurt.

她在事故中毫发无损。

B2 adjective /ˌʌnəˈveɪləbəl/

unavailable

不可用

Meaning

Not able to be obtained, reached, or used; not present or accessible.

Example

The manager was unavailable to take calls during the meeting.

经理在会议期间不可用，无法接听电话。

B1 adjective /ʌnˈlaɪk/

Unlike

不同的; 不相似的

Meaning

different from; not similar to

Example

Unlike his brother, he prefers quiet activities.

与他哥哥不同，他喜欢安静的活动。

C1 adjective /ʌnˈtɛnəbl/

untenable

无法维持

Meaning

not able to be maintained or defended against attack or objection

Example

The politician resigned when his position became untenable.

政治家在他的立场变得无法维持时辞职。

C2 adjective /ˌʌltrəˈmʌndeɪn/

ultramundane

超凡

Meaning

Relating to things beyond the physical world; supernatural or transcendental.

Example

Philosophers often discuss ultramundane realities beyond human perception.

哲学家们常常讨论超越人类感知的超凡现实。

C1 noun /ˈjuːnɪsən/

unison

齐声

Meaning

Simultaneous performance or utterance of action or speech.

Example

The choir sang in unison.

合唱团齐声唱歌。

C1 adjective ˌʌn.pəˈtɜːbd

unperturbed

不为某事烦恼或困扰；冷静且镇定

Meaning

Not worried or disturbed by something; calm and composed.

Example

She remained unperturbed despite the challenges.

尽管有挑战，她依然保持冷静。

B1 noun /ˌʌnɪmˈplɔɪmənt/

Unemployment

失业

Meaning

the state of being unemployed; lack of paid work

Example

The unemployment rate has increased significantly this year.

今年失业率显著上升。

C1 noun /ˌʌnprɪˈdɪktəˌbɪləti/

unpredictability

不可预测性

Meaning

The quality of being impossible to predict or anticipate.

Example

The unpredictability of the weather made the trip uncertain.

天气的不可预测性使得旅行充满不确定性。

B2 noun /ʌnˈkɒnʃəsnəs/

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.

事故后，他昏迷了几个小时。

B2 adjective /ˌʌnˈkɔːrdɪneɪtɪd/

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.

他的动作不协调，使他容易发生意外。

C1 noun /juːnəˈnɪməti/

Unanimity

一致性

Meaning

complete agreement among all members of a group

Example

The committee reached unanimity on the new policy.

委员会在新政策上达成了一致意见。

C2 adjective /ˌʌnɪkˈsɛpʃənəbl/

unexceptionable

无可指摘

Meaning

Not open to objection; acceptable and unobjectionable

Example

His behavior was unexceptionable throughout the event.

他的行为在整个事件中都是无可指摘的。

C1 adjective /ʌnˈbraɪdld/

unbridled

无法控制的

Meaning

Uncontrolled and unrestrained.

Example

The protesters showed unbridled enthusiasm for change.

抗议者展示了对改变的无法抑制的热情。

C2 noun /ˈjuːʒəri/

usury

高利贷

Meaning

The practice of lending money at unreasonably high interest rates.

Example

The law strictly prohibits usury.

法律严格禁止高利贷。

B2 adjective /ˌʌnkənˈtroʊld/

uncontrolled

无法控制的

Meaning

not restrained or managed; lacking control

Example

The wildfire spread in an uncontrolled manner, causing widespread damage.

野火以无法控制的方式蔓延，造成广泛破坏。

B2 verb /ʌnˈtaɪ/

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.

她解开绳子来释放船只。

C2 verb /juˈzɜrp/

usurp

篡位

Meaning

to take someone's position of power illegally or by force

Example

The general tried to usurp the king's throne.

将军试图篡夺国王的王位。

C1 adjective /ʌnˈsoʊld/

unsold

未售出的

Meaning

not sold; remaining without a buyer

Example

The unsold goods were returned to the warehouse.

未售出的商品被退回仓库。

B1 adjective /ʌnˈfrɛndli/

unfriendly

不友好的

Meaning

not kind or welcoming; hostile or cold in behavior or attitude

Example

The shop owner seemed unfriendly to new customers.

店主对新顾客显得不友好。

C2 adjective /ʌnˈfeɪnd/

unfeigned

真诚

Meaning

genuine; not pretended or insincere

Example

She expressed unfeigned joy at her friend's success.

她在朋友的成功上表达了真诚的喜悦。

C2 adverb /ʌnˈɜːrɪŋli/

unerringly

毫无错误

Meaning

Without making any mistakes; always accurate

Example

The archer aimed unerringly at the target.

弓箭手毫无错误地瞄准了目标。

C2 adjective /ʌnˈtiːtʃəbəl/

unteachable

不可教的

Meaning

not able or willing to learn; resistant to instruction or guidance

Example

He was so stubborn that he became almost unteachable.

他非常固执，几乎变得不可教。

C1 noun /ˌjuːnɪˈfɔːrməti/

Uniformity

一致性；统一性；相同状态

Meaning

the quality of being uniform; consistency or sameness

Example

The uniformity of the design created a pleasing visual effect.

设计的一致性创造了一个吸引人的视觉效果。

C2 noun /ˈʌm.brə/

Umbra

完全的阴影，太阳黑子的黑暗中心

Meaning

the fully shaded inner region of a shadow cast by an opaque object; the dark center of a sunspot

Example

During the eclipse, we stood in the moon's umbra.

在日食期间，我们站在月亮的本影中。

C2 verb /ʌnˈfɛtər/

unfetter

解开束缚

Meaning

to release from restraint or restriction; to free

Example

The new law will unfetter small businesses from excessive regulations.

新法律将使小企业免于过多的规定。

B2 adjective /ˈʌt.ɚ/

Utter

完全的; 绝对的; 全部的

Meaning

complete; absolute; total

Example

The movie was an utter disaster at the box office.

这部电影在票房上完全失败了。

C2 adjective /ʌnˈspɛərɪŋ/

unsparing

无情的

Meaning

Showing no mercy or generosity; harsh or severe.

Example

The critic was unsparing in his review of the play.

评论家在他的剧评中毫不留情。

B2 adjective /ˌʌnəˈweər/

Unaware

无意识的; 不知道的; 没有意识

Meaning

not knowing or realizing; having no knowledge of something

Example

She was completely unaware of the danger.

她完全没有意识到危险。

C2 adjective /ˌʌltrəˈmɒnteɪn/

ultramontane

教皇支持者

Meaning

beyond the mountains, especially referring to support for the Pope over local church authority

Example

The debate highlighted the ultramontane position in church politics.

辩论突出了教会政治中超山的立场。

C1 adjective /ʌnˈhoʊli/

Unholy

亵渎的; 罪恶的; 亵渎的

Meaning

wicked; sinful; profane

Example

The unholy alliance between the two companies caused public outrage.

这两家公司之间的不圣洁联盟引发了公众愤怒。

B2 verb /ɜːrdʒ/

urge

催促

Meaning

to strongly encourage or try to persuade someone to do something

Example

Doctors urge patients to exercise regularly.

医生鼓励病人定期锻炼。

B1 adjective /ʌnˈkaʊntəbəl/

Uncountable

无法计数的; 无穷的

Meaning

too many to be counted; innumerable; infinite in quantity

Example

There are uncountable stars in the night sky.

夜空中有无数的星星。

B2 noun /ˈʌpˌkiːp/

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.

老房子的维护非常昂贵。

C1 adjective /ˌʌnəˈdɔːrnd/

unadorned

简单的，未装饰的

Meaning

Plain and simple; not decorated.

Example

The room was unadorned, with only a table and a chair.

房间简单，只有一张桌子和一把椅子。

C2 verb /ʌpˈbreɪd/

upbraid

斥责

Meaning

To scold or criticize someone harshly.

Example

The teacher upbraided the student for being late again.

老师因为学生再次迟到而训斥了他。

C1 adjective /ʌnˈtʌtʃəbəl/

Untouchable

不可触碰的; 无法批评或攻击

Meaning

not able to be touched or affected; beyond criticism or attack

Example

The CEO seemed untouchable despite the scandal.

即使有丑闻，首席执行官似乎仍然是不可触碰的。

最终

Meaning

in the end, after everything else

Example

Ultimately, we decided to go ahead with the project.

最终，我们决定继续推进该项目。