slacken
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C1 verb /ˈslækən/

slacken

放松
Meaning
to make or become less tight, less active, or slower
Example
The driver slackened his speed as he approached the village.
司机在接近村庄时放慢了速度。
C1 verb /praʊl/

prowl

悄悄走动（猎取或寻找）
Meaning
To move around quietly and secretly, especially while hunting or searching.
Example
The cat prowled around the garden at night.
猫在夜间悄悄地绕着花园走。
C1 noun /ɪmˌpɒsəˈbɪlɪti/

impossibility

不可能性
Meaning
the state or fact of being impossible; something that cannot be done or achieved
Example
Finishing the project in one day was an impossibility.
在一天内完成这个项目是不可能的。
C1 adjective /swɑːv/

suave

迷人且优雅
Meaning
charming, confident, and elegant, often in a smooth or polished way
Example
He was a suave gentleman who impressed everyone at the party.
他是一个优雅的绅士，在派对上给大家留下了深刻的印象。
C1 noun /ˈfɔɪeɪr/

foyer

前厅
Meaning
An entrance hall or lobby in a building.
Example
The guests waited in the hotel foyer before checking in.
客人在酒店大厅等候办理入住手续。
C1 adjective /ˈsæk.rəˌsæŋkt/

sacrosanct

神圣不可侵犯的
Meaning
Regarded as too important or valuable to be interfered with; sacred.
Example
Freedom of speech is considered sacrosanct in democratic societies.
言论自由在民主社会中被视为神圣不可侵犯的。
C1 noun /ˌsɪmbɪˈəʊsɪs/

symbiosis

共生关系
Meaning
A mutually beneficial relationship between different people or groups.
Example
The symbiosis between the two companies led to mutual growth.
两家公司之间的共生关系导致了共同的增长。
C1 noun /ˈbɔɪənsi/ or /ˈbuːjənsi/

buoyancy

浮力, 快乐
Meaning
The ability to float in a liquid; cheerfulness and optimism.
Example
Her natural buoyancy lifted the mood of the group.
她自然的快乐提升了小组的氛围。
C1 verb /proʊˈtruːd/

protrude

突出
Meaning
To stick out or extend beyond a surface.
Example
A nail was protruding from the wooden board.
一根钉子从木板中突出出来。
C1 verb /deɪz/

daze

Meaning
to stun or confuse someone temporarily with a shock or surprise
Example
The bright lights dazed the runners as they entered the stadium.
C1 verb, noun /ˈbrɪsəl/

bristle

刚毛; 愤怒反应
Meaning
to react angrily or defensively; a short stiff hair or fiber
Example
The cat bristled when it saw the dog.
猫看到狗时毛发竖起来。
C1 noun /ˈɛkstrəˌvɜːrt/

extrovert

外向者
Meaning
a person who is outgoing, sociable, and energized by being around other people
Example
As an extrovert, she enjoys meeting new people at social events.
作为一个外向者，她喜欢在社交活动中认识新朋友。
C1 noun /ˌmɪsˈkɒn.dʌkt/

Misconduct

不当行为
Meaning
Unacceptable or improper behavior, especially by a professional person
Example
The officer was dismissed for professional misconduct.
该官员因职业不当行为被解雇。
C1 adjective /raɪ/

wry

扭曲的，讽刺的
Meaning
twisted or distorted in expression; showing dry, mocking humor
Example
He gave a wry smile after hearing the sarcastic remark.
他在听到讽刺的评论后，露出了扭曲的微笑。
C1 adjective /ˈdɪs.ə.plɪ.ner.i/

Disciplinary

纪律的
Meaning
relating to discipline; intended to correct behavior
Example
The company took disciplinary action against the employee.
公司对员工采取了纪律处分措施。
C1 verb /ˈbɛkən/

beckon

招手示意
Meaning
to signal or call someone to come closer, often with a gesture; to attract or invite
Example
She beckoned him to come closer with a wave of her hand.
她挥手示意他走近一些。
C1 noun /ˈrɪpəl/

Ripple

涟漪
Meaning
a small wave on the surface of water; a spreading effect or influence
Example
The stone created ripples across the calm pond.
石头在平静的池塘中激起了涟漪。
C1 verb /ɪmˈpɑːrt/

impart

传授
Meaning
to make information known; to bestow or communicate
Example
The teacher imparted valuable knowledge to her students.
老师将宝贵的知识传授给她的学生。
C1 adjective /ˈmɒnstrəs/

Monstrous

极其大的; 令人震惊的邪恶或错误; 不正常或不自然
Meaning
extremely large; shockingly evil or wrong; abnormal or unnatural
Example
The monstrous crime shocked the entire community.
那个怪异的罪行震惊了整个社区。
C1 noun /ˈsɜːrəɡət/

surrogate

代理人
Meaning
A substitute, especially a person deputizing for another in a specific role or office.
Example
The surrogate mother gave birth to the child after carrying it for nine months.
代孕母亲在怀孕九个月后把孩子生下了。
C1 verb /paʊt/

pout

撅嘴
Meaning
to push one's lips forward as an expression of annoyance or sulkiness
Example
The child began to pout when he didn’t get the toy.
孩子没得到玩具时开始撅嘴。
C1 noun /ˈlɪŋɡwɪst/

linguist

语言学家
Meaning
A person skilled in foreign languages or in the scientific study of language.
Example
She is a linguist who speaks six languages fluently.
她是一位能流利讲六种语言的语言学家。
C1 noun /hɔːrd/

horde

一群人
Meaning
A large group or crowd, especially one that is disorderly or difficult to control.
Example
A horde of fans gathered outside the stadium.
一群粉丝聚集在体育场外。
C1 adjective /ˈɡrændioʊs/

grandiose

宏伟
Meaning
Impressive or magnificent in appearance or style, often pretentiously so.
Example
He had grandiose plans of building a futuristic city in the desert.
他有宏伟的计划，在沙漠中建造一个未来主义的城市。
C1 adjective /ˈmɜː.sɪ.fəl/

Merciful

仁慈的; 富有同情心的
Meaning
showing compassion or forgiveness; kind and forgiving
Example
The merciful judge gave him a lighter sentence.
仁慈的法官给了他一个较轻的判决。
C1 noun /kɪˈməʊnoʊ/

kimono

和服
Meaning
a traditional Japanese robe with wide sleeves, tied with a sash
Example
She wore a beautiful silk kimono at the ceremony.
她在仪式上穿着一件美丽的丝绸和服。
C1 adjective /ɪnˈfɜːm/

infirm

虚弱
Meaning
Weak, especially due to old age or illness.
Example
The infirm old man needed assistance to walk.
那位虚弱的老人需要帮助才能走路。
C1 noun /ˈtɪrəni/

tyranny

暴政
Meaning
Cruel and oppressive government or rule by a tyrant.
Example
The people revolted against the tyranny of their ruler.
人民反抗他们统治者的暴政。
C1 noun ˌsæn.ɪ.taɪˈzeɪ.ʃən

sanitization

消毒
Meaning
The process of cleaning and disinfecting to eliminate germs and bacteria.
Example
Regular sanitization keeps appliances germ-free.
定期消毒保持设备无菌。
C1 noun /tɑːrˈpɔːlɪn/

tarpaulin

Meaning
A large sheet of strong, flexible, water-resistant material used for covering or protecting things.
Example
The workers used a tarpaulin to cover the construction materials from rain.
C1 verb /ʌnˈkɔrk/

uncork

开瓶
Meaning
To remove the cork from a bottle; to open a bottle, especially of wine
Example
He uncorked the wine and poured a glass for everyone.
他开了葡萄酒，并为每个人倒了一杯。
C1 adjective /ʌnˈseɪvəri/

unsavory

令人不快
Meaning
Disagreeable, unpleasant, or morally offensive.
Example
The politician was linked to an unsavory scandal.
那位政治家与一宗令人不快的丑闻有关。
C1 noun /ˌtɒləˈreɪʃən/

toleration

宽容
Meaning
The practice of allowing something that one does not necessarily agree with.
Example
The government promoted religious toleration.
政府促进了宗教宽容。
C1 adjective /ˌʌn.əˈdʌl.tə.reɪ.tɪd/

Unadulterated

纯净的
Meaning
not mixed or diluted with any different or extra elements; pure
Example
She felt unadulterated joy when she heard the news.
当她听到这个消息时，她感到纯净的快乐。
C1 noun /ˈwed.lɒk/

Wed lock

婚姻
Meaning
the state of being married; matrimony
Example
They have been happily united in wedlock for twenty years.
他们已经幸福地结婚二十年了。
C1 noun /ˈʃæpəroʊn/

chaperon

陪伴者
Meaning
An older person who accompanies and supervises young people in social situations.
Example
The teacher acted as a chaperon during the school dance.
老师在学校舞会期间担任了陪伴者的角色。
C1 noun /ˈmelənkəli/

Melancholy

忧郁; 深思熟虑的悲伤
Meaning
A feeling of pensive sadness; thoughtful or gentle sadness
Example
A deep melancholy settled over him after reading the old letters.
读完旧信后，他感到一阵深深的忧郁。
C1 verb /ɪnˈfjʊərieɪt/

infuriate

激怒
Meaning
To make someone extremely angry.
Example
His careless remarks infuriated the entire team.
他的不小心评论让整个团队生气。
C1 verb /sərˈmaɪz/

surmise

推测
Meaning
to suppose something is true without having evidence
Example
She surmised that he was not coming to the meeting.
她推测他不会来参加会议。
C1 adjective /ʌnˈθɪŋkɪŋ/

unthinking

欠考虑的
Meaning
done without careful thought; automatic or thoughtless
Example
His unthinking remark hurt her feelings.
他欠考虑的评论伤害了她的感情。
C1 noun /ɪmˈpɒs.tər/

Impostor

冒充者; 欺诈者
Meaning
a person who pretends to be someone else in order to deceive others; a fraud
Example
The impostor convinced everyone he was a doctor until his fake credentials were discovered.
冒充者说服了每个人，直到他的假证书被发现。
C1 noun /ˈpraɪməsi/

primacy

优先权
Meaning
the state of being first in importance or authority
Example
The primacy of education cannot be denied.
教育的优先权不可否认。
C1 noun /ˈlɪɡ.əmənt/

ligament

韧带组织
Meaning
A tough band of tissue that connects bones at a joint.
Example
He tore a ligament in his knee while playing football.
他在踢足球时撕裂了膝盖的韧带。
C1 noun /bɜːrθ/

Berth

卧铺; 船、火车或其他交通工具上的睡觉地方
Meaning
a sleeping place in a ship, train, or other vehicle; a place where a ship can dock
Example
I booked an upper berth on the overnight train.
我在夜间列车上预订了一个上铺。
C1 noun /joʊk/

Yoke

轭
Meaning
a wooden crosspiece that is fastened over the necks of two animals and attached to a plow or cart; a burden or oppressive situation
Example
The oxen were joined by a wooden yoke.
这些牛被木制的轭连接在一起。
C1 verb /əbˈzɒlv/

absolve

赦免
Meaning
to free someone from blame, guilt, or responsibility; to pardon
Example
The priest absolved him of his sins.
牧师赦免了他所有的罪。
C1 verb /ləˈmɛnt/

lament

哀悼
Meaning
to express grief, sorrow, or regret about something
Example
She lamented the loss of her childhood home.
她哀悼了失去的童年家园。
C1 verb /vɪə(r)/

veer

突然改变方向
Meaning
to change direction suddenly
Example
The car veered off the road to avoid the accident.
汽车为了避开事故突然驶离了道路。
C1 noun /ɪˈlɪpsɪs/

ellipsis

省略号
Meaning
The omission of words in a sentence, represented by three dots (...).
Example
The writer used an ellipsis to show that part of the quote was omitted.
作者使用省略号来表示引用的部分被省略。
C1 verb /ˈtræŋ.kwɪ.laɪz/

tranquilize

镇静
Meaning
to make someone or something calm or less anxious, often by using drugs
Example
The veterinarian had to tranquilize the tiger before moving it.
兽医必须在移动老虎之前使其镇静。
C1 noun /ˌræm.ɪ.fɪˈkeɪ.ʃən/

ramification

后果
Meaning
a consequence of an action or event, often complex or unwelcome.
Example
The new law has serious social ramifications.
新法律有严重的社会后果。
C1 noun /ˈkærət/

karat

克拉
Meaning
A unit for measuring the purity of gold, with 24 karats being pure gold.
Example
The ring was made of 18-karat gold.
戒指是由18克拉黄金制成的。
C1 noun /trʌsˈtiː/

trustee

受托人
Meaning
a person who holds or manages property or assets for the benefit of others
Example
She was appointed as the trustee of the family estate.
她被任命为家庭财产的受托人。
C1 noun /əˈrɪs.tə.kræt/

Aristocrat

贵族; 贵族阶层的人
Meaning
a member of the aristocracy; a person of noble rank or birth
Example
The aristocrat lived in a magnificent castle.
那个贵族住在一座宏伟的城堡里。
C1 adjective ɪɡˈzɛmpləri

exemplary

典范
Meaning
Serving as a desirable model; representing the best of its kind.
Example
She was praised for her exemplary work ethic and dedication.
她因其典范的工作态度和奉献精神而受到表扬。
C1 verb /ˈpɪlfər/

pilfer

偷窃
Meaning
to steal things of small value or in small quantities
Example
The employee was caught pilfering office supplies.
员工在偷窃办公室用品时被抓住。
C1 noun /ˈwɒrənt/

Warrant

搜查令
Meaning
a legal document that gives police the authority to do something; justification or authority for an action
Example
The police obtained a search warrant before entering the building.
警方在进入大楼之前获得了搜查令。
C1 noun dɪˈskrep.ən.siz

discrepancies

差异
Meaning
Differences between things that should be the same
Example
Discrepancies in regulations delay progress.
规则中的差异延迟了进展。
C1 noun /məˈnɒɡəmi/

monogamy

一夫一妻制
Meaning
The practice of being married to or in a relationship with only one person at a time.
Example
Many cultures encourage monogamy as the ideal form of marriage.
许多文化鼓励一夫一妻制作为理想的婚姻形式。
C1 noun /ˈmɪlɪtəˌrɪzəm/

militarism

军事主义
Meaning
The belief in maintaining a strong military and using it aggressively to defend or promote national interests.
Example
The rise of militarism in the region caused tension among neighboring countries.
该地区军事主义的兴起引发了邻国之间的紧张局势。
C1 noun, verb /əˈsɛnt/

assent

同意
Meaning
To agree to something, especially after careful consideration; an expression of approval.
Example
She nodded her head in silent assent.
她默默地点了点头。
C1 noun ɔːrˈdiːl

ordeal

艰难的考验
Meaning
A physical or mental painful experience that must be endured
Example
Surviving the wilderness was a tough ordeal for them.
在野外生存对他们来说是一场艰难的考验。
C1 noun /ˈʌndərˌstʌdi/

understudy

替身演员
Meaning
An actor who learns another's role to act as a replacement if needed.
Example
The understudy performed when the lead actor fell ill.
当主角生病时，替身演员上场表演。
C1 noun /ˈnɒs.trɪl/

Nostril

鼻孔
Meaning
either of the two openings in the nose through which air passes
Example
The doctor checked each nostril for any blockage.
医生检查了每个鼻孔，寻找任何阻塞物。
C1 noun /ˈklæmər/

clamor

喧嚣
Meaning
a loud and confused noise, especially of people shouting insistently
Example
The clamor of the protesting crowd filled the square.
抗议人群的喧嚣充满了广场。
C1 adverb /ˈheɪs.tɪ.li/

Hastily

匆忙地
Meaning
in a hurried or rushed manner; quickly and carelessly
Example
She hastily packed her bags before leaving for the airport.
她匆忙地收拾行李，赶去机场。
C1 adjective /ˌsɛm.iˈæn.ju.əl/

semiannual

半年一次
Meaning
Occurring twice a year; every six months.
Example
The company holds a semiannual meeting with all employees.
公司每六个月举行一次会议。
C1 adjective /ˈkɒɡ.nɪ.zənt/

cognizant

意识到
Meaning
Having knowledge or being aware of something.
Example
He was cognizant of the risks before starting the project.
他在开始这个项目之前就意识到风险。
C1 adjective /ˌdɪktəˈtɔːriəl/

dictatorial

独裁的
Meaning
Having or showing a tendency to tell people what to do in an autocratic way.
Example
His dictatorial style made him unpopular among colleagues.
他的独裁风格使他在同事中不受欢迎。
C1 noun /ˈnɔːrməlsi/

normalcy

正常
Meaning
The condition of being normal; a return to usual or expected conditions.
Example
After the flood, the town struggled to regain a sense of normalcy.
洪水过后，城镇努力恢复正常状态。
C1 adjective /ˈhæɡ.ərd/

Haggard

看起来疲惫和虚弱，尤其是由于疲劳、担忧或痛苦
Meaning
looking exhausted and unwell, especially from fatigue, worry, or suffering
Example
After working three nights without sleep, he looked haggard.
经过三夜没睡觉，他看起来很疲惫。
C1 noun /ˈmjuːtɪni/

mutiny

叛乱
Meaning
an open rebellion against authority, especially by soldiers or sailors
Example
The sailors staged a mutiny against their captain.
水手们发动了对他们船长的叛乱。
C1 verb /ɪnˈlaɪvən/

enliven

使生动
Meaning
to make something more lively, interesting, or cheerful
Example
Her jokes helped enliven the dull meeting.
她的笑话帮助让枯燥的会议变得生动。
C1 noun /ˈpeɪtriɑːrk/

patriarch

家族长
Meaning
a male head of a family or tribe; an older respected man who leads a group
Example
As the family patriarch, he mediated disputes and kept long traditions alive.
作为家族长，他调解争端并保持着传统的延续。
C1 adjective /ˈænsɪləri/

ancillary

附属的
Meaning
providing necessary support to the main system or organization
Example
The company provides ancillary services to the healthcare industry.
公司为医疗行业提供附加服务。
C1 noun /ɪnˈfɜːməri/

infirmary

医务室
Meaning
A hospital or place where the sick or injured are cared for.
Example
The school had an infirmary for minor injuries.
学校为轻微受伤提供了医务室。
C1 noun /ˈdʒiː.nəs/

genus

属
Meaning
a category in biological classification ranking above species and below family
Example
The tiger belongs to the genus Panthera.
老虎属于豹属 Panthera。
C1 noun /ʃæˈtoʊ/

chateau

法国庄园
Meaning
a large French country house or castle
Example
They stayed in a beautiful chateau in France.
他们住在法国的一座美丽的城堡里。
C1 verb /əˈlɒt/

allot

幸福
Meaning
to give or assign something, often a share or portion, to someone
Example
Each student was allotted ten minutes to present.
她在获得奖项时无法掩饰自己的幸福。
C1 noun /ˈprɒv.ɜːb/

Proverb

幸福
Meaning
a short saying that expresses a general truth or gives advice
Example
The proverb 'Early to bed, early to rise' teaches us about good habits.
当她收到奖项时，她无法掩饰自己的幸福。
C1 verb /struː/

strew

散播
Meaning
to scatter or spread things untidily over a surface or area
Example
Clothes were strewn across the floor.
衣服散落在地板上。
C1 noun /fəˈrɒs.ə.ti/

ferocity

凶猛，暴力，强度
Meaning
The state or quality of being ferocious; extreme fierceness or violence.
Example
The storm's ferocity was devastating.
风暴的猛烈程度是毁灭性的。
C1 verb /ɪɡˈzæspəˌreɪt/

exasperate

激怒
Meaning
to irritate or annoy intensely
Example
His constant complaints began to exasperate his coworkers.
他不断的抱怨开始让同事恼火。
C1 adjective/noun /ˈkɜːrsɪv/

cursive

斜体字
Meaning
Written with characters joined together in a flowing manner.
Example
The teacher asked students to write the essay in cursive handwriting.
老师让学生用斜体字写作文。
C1 adverb /əˈlɒft/

aloft

高空
Meaning
Up in or into the air; overhead.
Example
The kite was flying aloft in the clear sky.
风筝在晴空中高飞。
C1 noun /ˈrɛz.ə.nəns/

resonance

共鸣
Meaning
A deep, reverberating sound or a quality of evoking response.
Example
His speech had a deep resonance with the audience.
他的演讲在观众中产生了深刻的共鸣。
C1 noun səˈsteɪnəbəl ænd kəˈlæbərətɪv əˈproʊtʃ

sustainable and collaborative approach

可持续和协作的方法
Meaning
A method of working together that can be maintained over time without depleting resources or causing harm.
Example
A sustainable and collaborative approach is crucial for solving environmental problems.
可持续和协作的方法对于解决环境问题至关重要。
C1 noun mælˈnʌr.ɪʃ.mənt

malnourishment

营养不良
Meaning
Lack of proper nutrition, caused by not having enough to eat, not eating enough of the right things, or being unable to use the food that one does eat.
Example
Children in poverty-stricken areas suffer from malnourishment.
贫困地区的孩子们遭受营养不良。
C1 adjective ˈklaɪ.mət rɪˈzɪl.i.ənt

climate-resilient

气候适应性强
Meaning
Able to cope with the adverse effects of climate change; sustainable and adaptable.
Example
Climate-resilient crops can survive extreme weather conditions.
气候适应性强的作物能够在极端天气条件下生存。
C1 noun rɪˈdʌndənsi

redundancy

冗余，过剩
Meaning
The state of being not or no longer needed or useful; superfluousness.
Example
The redundancy in the company's workforce led to many layoffs.
公司员工中的冗余导致了大量裁员。
C1 adjective ˈɒk.sɪ.də.tɪv

oxidative

与氧化相关
Meaning
Related to or caused by oxidation, especially cellular damage from free radicals.
Example
Excess stress can lead to oxidative damage in cells.
过度的压力可能导致细胞中的氧化损伤。
C1 adjective /ˈvæljənt/

Valiant

英勇的; 英雄的
Meaning
showing courage or determination; brave and heroic
Example
The valiant soldier fought bravely to protect his country.
英勇的士兵勇敢地战斗，保护了他的国家。
C1 adjective /ˈblʌdləs/

bloodless

无血
Meaning
without bloodshed; lacking violence or vitality
Example
The revolution was surprisingly bloodless.
这场革命出奇地没有流血。
C1 noun /ˈstəʊ.ɪ.sɪ.zəm/

stoicism

斯多伊主义
Meaning
The endurance of pain or hardship without the display of feelings and without complaint.
Example
His stoicism during hardship was admirable.
他在困境中的斯多伊主义令人钦佩。
C1 adjective /ˈpiːkənt/

piquant

辛辣
Meaning
having a pleasantly sharp or spicy taste; interestingly provocative
Example
The chef added a piquant sauce to the dish to enhance its flavor.
厨师在菜肴中加入了辛辣的酱汁，以增强其味道。
C1 noun ˈθɜː.məl stres

thermal stress

热应力
Meaning
Stress caused by excessive heat that affects plant growth and development.
Example
High thermal stress affects plant growth.
高温应力影响植物的生长。
C1 noun /əbˈstrʌkʃən/

obstruction

障碍
Meaning
Something that blocks or gets in the way; the action of obstructing.
Example
There was an obstruction on the railway track.
铁路上有一个障碍。
C1 noun/verb /ˈsuː.tʃər/

suture

缝合
Meaning
A stitch or row of stitches holding together the edges of a wound or surgical incision.
Example
The doctor used a suture to close the wound.
医生使用了缝合线来闭合伤口。
C1 adjective /ˈbɔɪstərəs/

boisterous

喧闹
Meaning
noisy, energetic, and cheerful; rowdy
Example
The children were boisterous during the birthday party.
孩子们在生日派对上很喧闹。
C1 noun ˌdʒɛriˈætrɪk səˈsaɪəti

geriatric society

老年人社会
Meaning
A society or community where elderly people make up a large proportion of the population
Example
A geriatric society demands specialized healthcare systems.
老年人社会需要专业的医疗保健系统。
C1 noun /ˈdjuːplɛks/

duplex

双拼房
Meaning
A house or apartment divided into two separate residences.
Example
They live in a duplex near the city center.
他们住在市中心附近的一座双拼房里。
C1 adjective ˈzɛləs

zealous

热心的
Meaning
Having or showing great energy or enthusiasm in pursuit of a cause or objective; fervent.
Example
The zealous volunteers worked tirelessly for the cause.
热心的志愿者们为事业不知疲倦地工作。
C1 noun /ˈɛləkwəns/

eloquence

口才
Meaning
Fluent or persuasive speaking or writing.
Example
His eloquence in speech won him great respect.
他在演讲中的口才为他赢得了极大的尊重。
C1 verb /səˈfɪstɪkeɪt/

sophisticate

使精致
Meaning
to make something more complex or refined; to educate or develop in taste and manners
Example
Traveling abroad helped sophisticate his worldview.
出国旅行帮助他完善了世界观。
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。
C1 noun /ˈkæn.dɚ/

candor

坦诚
Meaning
The quality of being open, honest, and straightforward in speech or expression.
Example
She spoke with candor about the challenges she faced.
她坦诚地谈论了她面临的挑战。
C1 noun /ˌkɒn.stəˈleɪ.ʃən/

constellation

星座
Meaning
a group of stars forming a recognizable pattern in the night sky
Example
Orion is one of the most famous constellations.
猎户座是最著名的星座之一。
C1 verb /ʌnˈɜːθ/

unearth

发掘
Meaning
To dig up from the ground or to discover something hidden.
Example
Archaeologists unearthed ancient artifacts at the site.
考古学家在遗址发掘了古代文物。
C1 adverb /ˈduːli/

Duly

恰当地, 按时
Meaning
in accordance with what is required or appropriate; at the proper time
Example
The documents were duly signed and submitted.
文件已按时恰当地签署并提交。
C1 verb /ɪˈnjuːməˌreɪt/

enumerate

列举
Meaning
to mention things one by one; to list or count
Example
She enumerated the reasons for her decision.
她列举了做出决定的理由。
C1 verb /ˈskʌt.əl/

scuttle

幸福
Meaning
To run hurriedly with short, quick steps; or to deliberately sink a ship.
Example
The children scuttled back to their seats when the teacher entered.
她在收到奖项时无法掩饰她的幸福感。
C1 verb /ˌɪnstɪˈtjuːʃənəlaɪz/

institutionalize

制度化
Meaning
to establish something as a formal institution, custom, or practice
Example
The government seeks to institutionalize environmental protection.
政府致力于将环境保护制度化。
C1 adjective /ɪnˈflæməbəl/

Inflammable

易燃; 可燃
Meaning
easily set on fire; flammable; combustible
Example
The inflammable material caught fire quickly.
易燃材料很快着火了。
C1 noun /ˈfɔːrˌbɛər/

forebear

祖先
Meaning
An ancestor, especially one who lived a long time ago.
Example
He often speaks of his forebears with great respect.
他常常带着极大的敬意谈论他的祖先。
C1 noun /ˌdɛrɪˈveɪʃən/

derivation

衍生
Meaning
The origin or development of something from a source.
Example
The derivation of the word comes from Latin.
这个词的词源来自拉丁语。
C1 adjective /ˌsɛlf ɪˈfeɪsɪŋ/

self-effacing

谦虚的
Meaning
not drawing attention to oneself; modest
Example
Despite his success, he remained self-effacing and humble.
尽管他取得了成功，他仍然保持谦虚和谦逊。
C1 verb /ɔːˈθɛntɪkeɪt/

authenticate

认证
Meaning
To prove or show that something is genuine or true.
Example
The bank uses advanced technology to authenticate online transactions.
银行使用先进的技术来认证在线交易。
C1 verb /dɪˈtrækt/

detract

Meaning
To reduce or take away the worth or value of something.
Example
His rude behavior will detract from his good reputation.
C1 noun /təˈpɒɡrəfi/

topography

地形
Meaning
the arrangement of the natural and artificial physical features of an area
Example
The topography of the region made construction very challenging.
该地区的地形使得施工非常具有挑战性。
C1 adjective /kəˈləʊ.kwi.əl/

colloquial

口语
Meaning
Used in ordinary conversation rather than formal speech or writing; informal language.
Example
His colloquial expressions made the speech relatable.
他的口语表达让演讲更加生动。
C1 adjective /ˌsæŋktɪˈmoʊniəs/

sanctimonious

伪善的虔诚
Meaning
Making a show of being morally superior to others; hypocritically pious.
Example
He gave a sanctimonious speech about honesty while he himself was corrupt.
他发表了一篇关于诚实的伪善演讲，而他自己却腐败了。