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C1 noun /ˈækwɪˌdʌkt/

aqueduct

引水道
Meaning
a structure built to carry water over long distances
Example
The Romans built aqueducts to supply water to their cities.
罗马人建造了引水道来为他们的城市提供水。
C1 verb /ˈfɔːrtɪˌfaɪ/

fortify

加强
Meaning
To strengthen a place, person, or thing physically or mentally.
Example
They fortified the city walls to protect against invasion.
他们加固了城市的墙壁，以防止入侵。
C1 noun /ˈveɪpəraɪzər/

vaporizer

蒸发器
Meaning
a device that turns a liquid into vapor, often for inhalation
Example
She used a vaporizer to ease her cough.
她使用了一个蒸发器来缓解她的咳嗽。
C1 noun ɪmˈpɛə(r)mənt

impairment

损伤, 残疾
Meaning
The state of being damaged or weakened; a disability or handicap.
Example
Hearing impairment can be caused by long-term exposure to loud noise.
听力损失可能是由长时间暴露于大声噪音造成的。
C1 verb /ˈfɛdərət/

federate

联合
Meaning
to unite in a league or federation; to form an alliance
Example
Several states federated to create a stronger union.
几个州联合起来创造了一个更强大的联盟。
C1 noun /ˈdʒɪŋ.ɡəl/

Jingle

轻微的金属声，通常由金属物体相互碰撞产生；一首短小而吸引人的歌曲
Meaning
a light ringing sound such as that made by metal objects being shaken together; a short catchy song
Example
The jingle of keys could be heard as she walked down the hallway.
当她走过走廊时，钥匙的声音可以听到。
C1 noun /ˌkɒrəˈneɪʃən/

coronation

加冕礼
Meaning
the act or ceremony of crowning a sovereign or monarch
Example
The coronation of the new king was attended by thousands of people.
新国王的加冕礼有成千上万的人参加。
C1 noun ˌɒp.tɪ.maɪˈzeɪ.ʃən

optimization

优化
Meaning
Improving processes to increase performance and efficiency.
Example
SEO optimization helps websites rank higher on search engines.
SEO优化帮助网站在搜索引擎中排名更高。
C1 verb /ɪnˈstɪl/

instill

灌输
Meaning
to gradually but firmly establish an idea, attitude, or habit in someone's mind
Example
Parents try to instill good values in their children.
父母试图在孩子们的心中灌输好的价值观。
C1 noun /ˈdɪs.ə.nəns/

dissonance

不和谐
Meaning
Disagreement, lack of harmony, conflict between ideas or beliefs.
Example
The cultural dissonance created misunderstandings.
文化不和谐造成了误解。
C1 adjective /rɪˈzɪdjuəl/

residual

剩余的
Meaning
Remaining after the greater part has gone.
Example
The patient experienced residual pain after the surgery.
病人在手术后经历了剩余的疼痛。
C1 noun /ˌdɪspəˈzɪʃən/

disposition

Meaning
A person's usual attitude or temperament; arrangement or tendency.
Example
She has a cheerful disposition despite the difficulties.
C1 adjective /ˈɡleɪʃəl/

glacial

与冰或冰川相关
Meaning
relating to ice or glaciers; extremely cold or unfriendly
Example
The mountains were covered in glacial ice.
山脉被冰川冰覆盖。
C1 adjective /ˈbɑːmi/

balmy

温和而愉快的温暖；舒缓。
Meaning
Mild and pleasantly warm; soothing.
Example
We enjoyed a walk on a balmy summer evening.
我们在一个温和的夏日晚间散步。
C1 noun /kəˈnʌn.drəm/

conundrum

复杂的问题或谜题
Meaning
A complex problem or puzzle without an easy solution
Example
The ethical conundrum puzzled the researchers.
这个道德困境让研究人员感到困惑。
C1 verb /aʊtˈlɪv/

outlive

比…活得长
Meaning
to live longer than someone or something else
Example
She outlived all her siblings.
她活过了所有的兄弟姐妹。
C1 adjective /ɪmˈpɛndɪŋ/

impending

即将来临
Meaning
about to happen soon, usually something unpleasant or threatening
Example
The villagers were worried about the impending flood.
村民们为即将来临的洪水感到担忧。
C1 noun /kənˈfɛdərəsi/

confederacy

联邦
Meaning
a group of states, people, or organizations united for a common purpose
Example
The southern states formed a confederacy during the civil war.
南方各州在内战期间组成了联邦。
C1 noun /ˈdɛljuːdʒ/

deluge

洪水
Meaning
A severe flood; an overwhelming quantity of something.
Example
The town was hit by a deluge of rain in just a few hours.
该镇在几个小时内被大雨洪水淹没。
C1 verb /ɪˈlɪsɪt/

elicit

引出
Meaning
To draw out a response, answer, or reaction from someone.
Example
The teacher’s question elicited thoughtful answers from the students.
老師的問題引發了學生的深思熟慮的回答。
C1 verb ˈlæŋ.ɡwɪʃ

languish

衰退或萎缩
Meaning
To remain in a state of neglect or decline for a long time without improvement.
Example
The project began to languish due to a lack of funding.
该项目因缺乏资金而开始衰退。
C1 noun /ˈænərkɪst/

anarchist

无政府主义者
Meaning
a person who believes in or promotes the absence of government or authority
Example
The anarchist group protested against state control.
无政府主义者团体反对国家控制。
C1 noun /bɪz/

Biz

生意
Meaning
business (informal); commercial enterprise or activity
Example
He's been in the restaurant biz for twenty years.
他已经在餐饮生意中工作了二十年。
C1 verb /ˈræʃənaɪz/

rationlize

合理化
Meaning
to justify or explain something with logical reasons, even if not appropriate or true
Example
He tried to rationlize his mistake by blaming the system.
他试图通过指责系统来合理化他的错误。
C1 adjective /pərˈpetʃuəl/

perpetual

永久
Meaning
never-ending or continuous
Example
She lived in perpetual fear of being discovered.
她生活在永久的被发现的恐惧中。
C1 noun, verb /ˈfrænʧaɪz/

franchise

特许经营
Meaning
A legal right to sell or distribute goods or services in a specific area; to grant such a right.
Example
He opened a new fast-food franchise in the city.
他在城市里开设了一家新的快餐特许经营店。
C1 noun /ˈlɪməˌziːn/

limousine

由司机驾驶的豪华大轿车
Meaning
a large, luxurious car driven by a chauffeur.
Example
The bride arrived in a white limousine.
新娘乘坐一辆白色的豪华轿车到达。
C1 noun /ɒnˈsɒmbəl/

ensemble

合奏, 团体
Meaning
a group of things or people viewed as a whole, especially performers in music or theater
Example
The theater ensemble gave a spectacular performance.
剧院合奏团进行了精彩的演出。
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 /ˈtrɪkstər/

trickster

骗子
Meaning
A person who cheats or deceives people.
Example
The old man turned out to be a clever trickster who fooled everyone.
那位老人竟然是个聪明的骗子，骗了所有人。
C1 adjective /θiːˈmætɪk/

thematic

主题的
Meaning
Relating to or based on a theme.
Example
The book is organized into thematic chapters.
这本书按主题章节组织。
C1 noun daɪˈkɒtəmi

dichotomy

二分法
Meaning
A division or contrast between two things that are or are represented as being opposed or entirely different.
Example
The dichotomy between tradition and modernity is often debated.
传统与现代之间的二分法常常被讨论。
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 adjective /ˌʌnrɪˈfaɪnd/

unrefined

未精炼的
Meaning
not processed or purified; lacking polish or sophistication
Example
The unrefined oil must be processed before it can be used as fuel.
未精炼的石油在用作燃料之前必须进行加工。
C1 noun /ˈhɔːl.mɑːrk/

hallmark

标志性特征
Meaning
a typical characteristic or feature of someone or something
Example
Honesty is the hallmark of a good leader.
诚实是一个好领导者的标志性特征。
C1 adjective /ˌmɪsəˈleɪniəs/

Miscellaneous

各种各样的; 混合的; 多样的
Meaning
various; diverse; mixed; assorted
Example
The box contained miscellaneous items from different periods.
盒子里有不同时间段的各种物品。
C1 verb /ˌriːˈsiːt/

reseat

重新安排
Meaning
to seat someone again or to fit something back into its place
Example
The usher had to reseat the guests after the interruption.
引座员在干扰后不得不重新安排宾客。
C1 verb pleɪɡd

plagued

困扰
Meaning
Troubled or afflicted persistently by problems or difficulties.
Example
People are plagued by anxiety and depression.
人们受到焦虑和抑郁的困扰。
C1 adjective /pərˈsɛptəbl̩/

perceptible

可察觉的
Meaning
Able to be noticed or recognized by the senses or the mind.
Example
There was a perceptible change in the atmosphere.
大气中有一个可察觉的变化。
C1 verb /ɪɡˈzɒnəreɪt/

exonerate

免罪
Meaning
To clear someone from blame or accusation.
Example
The court exonerated her from all charges.
法庭解除她所有指控。
C1 noun prəˈfaʊnd ɪˈnɪʃətɪv

profound initiative

深远的倡议
Meaning
A deep, meaningful, and significant action or program designed to create change.
Example
A profound initiative can create sustainable changes.
一个深刻的倡议可以创造可持续的变化。
C1 adjective /ɪˈledʒ.ə.bəl/

illegible

难以辨认
Meaning
Not clear enough to be read; unreadable.
Example
The doctor’s handwriting was almost illegible.
医生的字迹几乎难以辨认。
C1 noun /ˈhaɪdəweɪ/

hideaway

藏身处
Meaning
A place used as a retreat or a place to hide.
Example
The cabin in the woods was their secret hideaway.
树林中的小屋是他们的秘密藏身之地。
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 noun /ˈnaɪt.hʊd/

knighthood

骑士身份
Meaning
The rank or dignity of a knight, or the ceremony of conferring knighthood.
Example
He was honored with knighthood for his contributions to science.
由于他对科学的贡献，他被授予骑士身份。
C1 noun /ˈfɔːrsəm/

foursome

四人组
Meaning
a group of four people or things, especially in games or social activities
Example
The foursome enjoyed a game of golf together.
四人组一起享受了一场高尔夫比赛。
C1 noun /ˈsɛntɪnəl/

sentinel

哨兵
Meaning
A soldier or guard whose job is to stand and keep watch.
Example
A sentinel stood at the entrance of the camp.
一个哨兵站在营地的入口处。
C1 verb /lʌl/

lull

安抚
Meaning
to soothe or calm; to cause to sleep or rest
Example
The gentle music lulled the baby to sleep.
温柔的音乐使宝宝入睡。
C1 verb /dɪˈpoʊz/

depose

Meaning
to remove someone from office or power, especially suddenly and forcefully
Example
The rebels managed to depose the dictator after years of unrest.
C1 verb /rɪˈtreɪs/

retrace

Meaning
to go back over a path or route; to recall and repeat steps taken earlier
Example
She retraced her steps to find her lost keys.
C1 adjective /ɪnˈtɜːrmənəbl/

interminable

无尽
Meaning
Seemingly endless; having no apparent end.
Example
The meeting felt interminable and exhausting.
会议感觉无尽且令人疲惫。
C1 adjective /dɪˈspɒndənt/

despondent

Meaning
feeling or showing deep hopelessness or discouragement
Example
She felt despondent after losing her job.
C1 noun /ˈnaɪ.tɪŋ.ɡeɪl/

Nightingale

夜莺
Meaning
small songbird known for its beautiful singing, especially at night
Example
The nightingale sang sweetly in the moonlight.
夜莺在月光下甜美地歌唱。
C1 adjective /ˈskrɔːni/

scrawny

瘦弱
Meaning
very thin and bony, often looking unhealthy
Example
The scrawny boy could barely lift the heavy bag.
那个瘦弱的男孩几乎无法提起沉重的包。
C1 noun /naɪˈiːvteɪ/

naivete

Meaning
The quality of being naive; lack of experience, wisdom, or judgment.
Example
His naivete made him an easy target for manipulation.
C1 noun /rɪˈdʒɪdəti/

Rigidity

刚性
Meaning
inability to bend or be forced out of shape; unwillingness to change or compromise
Example
The rigidity of the old system prevented any innovation.
旧系统的刚性阻止了任何创新。
C1 noun /slɪt/

Slit

裂缝
Meaning
a long narrow opening or cut
Example
There was a small slit in the fabric.
布料上有一个小裂缝。
C1 noun, adjective /ˈɡʊrmeɪ/

gourmet

美食家
Meaning
A person who appreciates fine food and drink; also refers to high-quality food.
Example
They went to a gourmet restaurant to celebrate their anniversary.
他们去了一家美食家餐厅庆祝他们的周年纪念。
C1 adjective /ˌɪnədˈmɪsəbl̩/

inadmissible

不可接受
Meaning
Not allowed, especially as evidence in a court of law.
Example
The judge ruled the evidence inadmissible.
法官宣布证据不可接受。
C1 noun /ˌkɒnfləˈɡreɪʃən/

conflagaration

拼写错误（来自 'conflagration'）
Meaning
This is a common misspelling of 'conflagration', which means a large, destructive fire.
Example
The term 'conflagaration' is often incorrectly used instead of 'conflagration'.
'conflagaration' 这个词常常被错误地用来代替 'conflagration'。
C1 noun /ˌdɪfəˈrɛnʃɪˈeɪʃən/

differentiation

差异化, 区分
Meaning
The action or process of differentiating or distinguishing between things.
Example
Differentiation from competitors can create a unique market position.
从竞争者中实现差异化可以创建独特的市场地位。
C1 noun /ˌpæn.əˈræm.ə/

panorama

全景视图
Meaning
An unbroken view of the whole region surrounding an observer.
Example
From the hilltop, we enjoyed a breathtaking panorama of the city.
从山顶，我们欣赏到城市的壮丽全景。
C1 adjective /ˈdɪzməl/

Dismal

阴沉的; 沮丧的; 令人悲伤的
Meaning
gloomy; depressing; causing sadness or despair
Example
The weather was dismal with heavy rain and dark clouds.
天气阴沉，伴随大雨和黑暗的云层。
C1 noun /ˈpɛrəntɪdʒ/

parentage

家族背景
Meaning
The identity and origins of one's parents; descent or lineage.
Example
Her noble parentage gave her access to the royal court.
她的高贵家族背景使她有机会进入皇宫。
C1 adjective ˈɪn.tər.ɪm

interim

临时
Meaning
In or for the intervening period; provisional or temporary.
Example
Interim governments manage transitional phases.
临时政府管理过渡阶段。
C1 noun mɪˈtɪkjʊləsnɪs

meticulousness

对细节的极大关注
Meaning
Great attention to detail; very careful and precise.
Example
His meticulousness made the project successful.
他的细心让这个项目成功。
C1 noun /noʊm/

gnome

地精
Meaning
a small mythical creature, often depicted as a bearded man living underground; also a figurine used in gardens
Example
The garden was decorated with a gnome statue.
花园里摆放着一个地精雕像。
C1 adjective /ˌpɛd.əˈɡɒdʒ.ɪ.kəl/

pedagogical

教育学的
Meaning
Relating to teaching and education; concerned with the methods and practice of teaching.
Example
The school adopted new pedagogical techniques to improve learning.
学校采用了新的教育学技术来改善学习。
C1 noun /ræˈpɔːr/

rapport

关系
Meaning
A close and harmonious relationship in which the people or groups concerned understand each other's feelings or ideas.
Example
The teacher built a strong rapport with her students.
老师与学生建立了良好的关系。
C1 noun /ˈækəleɪd/

accolade

荣誉
Meaning
An award, honor, or expression of praise.
Example
She received an accolade for her outstanding performance.
她因出色的表现获得了荣誉。
C1 noun ˌɔːɡ.menˈteɪ.ʃən

augmentation

增加或扩展
Meaning
Increasing quantity, power or performance.
Example
The company invested in the augmentation of its workforce.
公司投资于增强其劳动力。
C1 verb /ˈθiːəraɪz/

theorize

理论化
Meaning
To form a theory or set of ideas to explain something.
Example
Scientists often theorize about the origins of the universe.
科学家们经常推测宇宙的起源。
C1 noun /ˈpɛnɪtəns/

penitence

忏悔
Meaning
The action or feeling of showing sorrow and regret for having done wrong.
Example
His eyes were full of penitence after realizing his mistake.
他在意识到自己的错误后，眼中充满了忏悔。
C1 adjective ʌnˈwɔːr.rən.tɪd

unwarranted

不合理的
Meaning
Not justified or necessary; without good reason.
Example
His anger toward the staff was completely unwarranted.
他对员工的愤怒是完全不合理的。
C1 verb /ˈpɜːmieɪt/

permeate

渗透, 弥漫, 渗入
Meaning
Spread throughout (something); pervade.
Example
The scent of fresh flowers permeated the entire room.
新鲜花朵的香气弥漫整个房间。
C1 noun əˈblɪv.i.ən

oblivion

遗忘, 灭绝, 消失
Meaning
The state of being unaware or unconscious of what is happening; complete forgetfulness.
Example
His name faded into oblivion over time.
随着时间的推移，他的名字渐渐消失在遗忘中。
C1 verb /ˌoʊvərˈriːtʃ/

overreach

过度伸展
Meaning
to go beyond what is proper, acceptable, or achievable; to overextend
Example
The politician overreached by making promises he couldn't keep.
那位政治家在做出无法兑现的承诺时，过度伸展了自己。
C1 noun /ˈʃɪvəlri/

chivalry

骑士精神
Meaning
The medieval knightly system with its moral, social, and religious code; courteous behavior, especially toward women.
Example
The knight lived by the code of chivalry.
骑士遵循骑士精神的规范。
C1 noun /ˈtriːkəl/

treacle

浓稠甜蜜的糖浆
Meaning
A thick, sweet syrup; excessively sentimental speech or writing.
Example
She poured treacle over the pancakes.
她把糖浆倒在了煎饼上。
C1 verb /ɪˈnɔːɡjʊreɪt/

inaugurate

Meaning
To formally begin or introduce something, especially with a ceremony.
Example
The mayor will inaugurate the new bridge tomorrow.
C1 adjective /ˈmʌðərli/

Motherly

母性
Meaning
having qualities characteristic of a mother; caring and protective
Example
She showed motherly care and affection towards all the children.
她向所有孩子展示了母亲般的关爱和温情。
C1 noun /ˈsɪvɪks/

civics

公民教育
Meaning
the study of the rights and duties of citizens and how government works
Example
Civics helps students understand their responsibilities as citizens.
公民教育帮助学生理解作为公民的责任。
C1 adjective /ɪnˈvɜːs/

Inverse

相反的；反向的
Meaning
opposite in order, nature, or effect; reversed
Example
There is an inverse relationship between price and demand.
价格和需求之间存在逆向关系。
C1 adverb /ˈvælɪdli/

validly

合法地
Meaning
in a legally, logically, or officially acceptable manner
Example
The contract was validly signed by both parties.
合同已由双方合法地签署。
C1 phrase ˌkæt.əˈɡɒr.ɪ.kəl.i rɪˈfjuː.tɪd

categorically refuted

完全驳回
Meaning
Completely and absolutely denied or disproved.
Example
The claims were categorically refuted by officials.
这些主张完全被官方驳回。
C1 noun /ˈɛksələnsɪ/

excellency

阁下
Meaning
a title of honor for people of high rank, especially ambassadors or governors
Example
His Excellency the Ambassador attended the ceremony.
阁下大使参加了仪式。
C1 noun /ˌprɒk.ləˈmeɪ.ʃən/

Proclamation

公告
Meaning
an official public announcement, especially one made by someone in authority
Example
The king issued a proclamation declaring peace.
国王发布了一项公告，宣布和平。
C1 verb /ˈdɛsɪmeɪt/

decimate

摧毁
Meaning
To destroy or kill a large proportion of something.
Example
The wildfire decimated the forest.
火灾摧毁了森林。
C1 noun /ˈtɒr.ənt/

Torrent

急流; 洪流
Meaning
a strong and fast-moving stream of water or other liquid; a sudden, violent, and copious outpouring
Example
The heavy rain created a torrent of water rushing down the mountain.
大雨造成了水流急速下山。
C1 verb /sɪˈkluːd/

seclude

隔离
Meaning
To keep someone away from other people; to isolate.
Example
The monk chose to seclude himself in the mountains.
僧侣选择在山中独自生活。
C1 adverb /ˌwɛr.əˈpɒn/

whereupon

紧接着
Meaning
Immediately after which; as a result of which.
Example
He confessed his mistake, whereupon she forgave him.
他承认了错误，紧接着她原谅了他。
C1 adjective /aɪˈdɪlɪk/

idyllic

田园诗般的美丽
Meaning
Like an idyll; extremely happy, peaceful, or picturesque.
Example
They enjoyed an idyllic vacation by the sea.
他们享受了一个田园诗般的海边假期。
C1 verb /daɪˈvɛst/

divest

Meaning
to strip away possessions, rights, or assets; to rid oneself of
Example
The company decided to divest its unprofitable division.
C1 noun /ˌkɒn.əˈsɜːr/

connoisseur

行家
Meaning
an expert judge in matters of taste, especially in food, art, or wine
Example
She is a true connoisseur of fine art.
她是美术的真正行家。
C1 noun/adjective /fɔːrˈboʊdɪŋ/

foreboding

不祥的预感
Meaning
A feeling that something bad will happen; ominous.
Example
She felt a deep sense of foreboding as she entered the abandoned house.
她走进那座废弃的房子时，感到一种深深的不祥预感。
C1 adjective /ɪˈneɪn/

inane

无意义的, 傻的
Meaning
lacking sense, meaning, or significance; silly or pointless
Example
The movie was criticized for its inane dialogue.
这部电影因其无意义的对话而受到批评。
C1 noun dəˌmɛstɪˈkeɪʃən

domestication

驯化
Meaning
The process of taming an animal and keeping it as a pet or for farm produce.
Example
Domestication of animals has been crucial for human survival.
动物的驯化对人类生存至关重要。
C1 adjective /ɪɡˈzɪləreɪtɪd/

exhilarated

兴奋的
Meaning
feeling very happy, animated, or elated
Example
She felt exhilarated after finishing the marathon.
她在完成马拉松后感到非常兴奋。
C1 noun /ˈrem.nənt/

Remnant

残余
Meaning
a small remaining quantity of something; a piece of cloth left over after the main piece has been used
Example
Only a remnant of the ancient wall remains.
古老的墙只剩下残余。
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 /frɪndʒ/

fringe

装饰边缘 / 边界
Meaning
A decorative border of threads; the outer edge or margin of something.
Example
The festival had a fringe of small independent performances.
节日有一条小型独立表演的边缘。
C1 noun /ɛkˈspeɪtriət/

expatriate

外籍人士
Meaning
a person who lives outside their native country
Example
Many expatriates gather in the city’s international community.
许多外籍人士聚集在城市的国际社区中。
C1 noun /aɪˈdiː.ə.lɪ.zəm/

Idealism

理想主义
Meaning
the pursuit of high principles and noble goals; unrealistic pursuit of perfection
Example
His youthful idealism motivated him to join various social justice movements.
他的青春理想主义激励他加入了各种社会公正运动。
C1 noun /kənˈfɔːrməns/

conformance

一致性
Meaning
The act of conforming to a rule, standard, or law.
Example
The product was tested for conformance with safety standards.
该产品已按照安全标准进行了符合性测试。
C1 adjective /drəˈkoʊniən/

draconian

龙般的
Meaning
Extremely harsh and severe, especially laws or rules.
Example
The new regulations were criticized as draconian.
新的规定被批评为龙般的。
C1 adjective /ˈhæb.ɪ.tə.bəl/

Habitable

宜居
Meaning
suitable or good enough to live in
Example
The planet Mars may become habitable in the future.
火星在未来可能变得宜居。
C1 noun /səbˈmɜːrdʒəns/

submergence

沉没
Meaning
the act or process of being submerged or going underwater
Example
The submergence of coastal areas is a major concern due to rising sea levels.
由于海平面上升，沿海地区的沉没成为一个重大问题。
C1 adjective /ˈrænsɪd/

rancid

变质的
Meaning
having a bad taste or smell due to being old or spoiled (especially fats or oils)
Example
The butter had gone rancid after being left out too long.
黄油放得太久，变质了。
C1 verb /ˌʌndəˈreɪt/

underrate

低估
Meaning
to fail to recognize the full value or importance of something or someone
Example
Many people underrate the benefits of regular exercise.
许多人低估了规律锻炼的好处。
C1 noun /ˈlaɪtʃi/

Litchi

荔枝
Meaning
a small oval pink-red tropical fruit with white translucent flesh and sweet taste
Example
The litchi has a rough pink shell that you peel to eat the sweet white fruit inside.
荔枝有一层粗糙的粉红色外皮，你剥开它就可以吃到里面甜美的白色果实。
C1 verb /skʌf/

scuff

擦伤
Meaning
to mark or scratch the surface of something by rubbing
Example
He scuffed his shoes on the pavement.
他在人行道上擦伤了他的鞋子。
C1 adjective /ˈspɑːrtn/

spartan

斯巴达式
Meaning
showing simplicity and lack of luxury; austere
Example
He lived in a spartan room with just a bed and a chair.
他住在一个斯巴达式的房间里，只有一张床和一把椅子。
C1 noun /ˈbæs.ti.ən/

bastion

堡垒, 防御工事
Meaning
a stronghold or fortification; a place or institution strongly defending particular principles
Example
The castle stood as a bastion against enemy attacks.
这座城堡作为抵御敌人攻击的堡垒而屹立。
C1 noun /ˈneɡ.lɪ.dʒəns/

Negligence

忽视
Meaning
failure to take proper care in doing something; carelessness
Example
The accident was caused by driver negligence.
事故是由司机的忽视引起的。
C1 verb /dʌb/

dub

配音
Meaning
to give a name or label to something; to add a soundtrack to a film or recording
Example
The movie was dubbed into several languages for international release.
这部电影为国际发行而配音成多种语言。
C1 noun /ˈʃɜːrbət/

sherbet

雪葩
Meaning
a sweet flavored drink or a frozen dessert made from sweetened fruit juice
Example
On hot days, she enjoys a glass of lemon sherbet.
在炎热的日子里，她喜欢喝一杯柠檬雪葩。
C1 noun /ˌæmplɪfɪˈkeɪʃən/

amplification

放大
Meaning
the act or process of making something stronger, louder, or more intense; an expansion or elaboration of details
Example
The microphone provides amplification of the speaker’s voice.
麦克风对说话者的声音起到放大作用。
C1 verb məˈtæb.ə.laɪz

metabolize

处理和利用食物以促进生长
Meaning
Process and use food for growth and to replace tissue, or process other substances in the body.
Example
The liver helps to metabolize toxins.
肝脏帮助代谢毒素。
C1 noun /ˈkoʊhɔːrts/

cohorts

队列
Meaning
Groups of people who share a common feature or experience.
Example
Researchers compared the health outcomes of different cohorts.
研究人员比较了不同队列的健康结果。
C1 noun /ˈbreɪkər/

breaker

断路器（打破某物的人或物体；在岸边破碎成泡沫的大海浪；中断电路的设备）
Meaning
A person or thing that breaks something; a large sea wave that breaks into foam near the shore; a device that interrupts an electric circuit.
Example
The breaker tripped during the storm, cutting off electricity.
暴风雨期间，断路器跳闸，切断了电力。
C1 noun, adjective /ˈsɛntənəri/ or /sɛnˈtɛnəri/

centenary

百年纪念
Meaning
The hundredth anniversary of a significant event; relating to a period of 100 years.
Example
The school celebrated its centenary with a grand event.
学校以一场盛大的活动庆祝了它的百年纪念。