centrifugal
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C2 adjective /sɛnˈtrɪfjʊɡəl/

centrifugal

离心
Meaning
Moving or tending to move away from a center.
Example
The centrifugal force pushes the clothes to the sides of the washing machine.
离心力将衣物推向洗衣机的两侧。
C2 adjective /ɪˈnɪmɪkəl/

inimical

敌对的 / 不利的
Meaning
tending to obstruct or harm; unfriendly or hostile
Example
The policy was inimical to the country's economic growth.
该政策对该国的经济增长不利。
C2 noun /ˈplɛbɪsaɪt/

plebiscite

公民投票
Meaning
a direct vote by the electorate on an important public question
Example
The government held a plebiscite to decide on the new constitution.
政府举行了公民投票，决定新的宪法。
C2 noun /ˈstænʃən/

stanchion

支柱
Meaning
a strong upright bar or post used as support or to control movement
Example
The red rope was attached to the stanchions to guide the crowd.
红色绳子被固定在支柱上以引导人群。
C2 noun /ˈpoʊ.ə.si/

poesy

诗意
Meaning
poetry; the art or composition of poems
Example
The anthology was filled with romantic poesy.
这本选集充满了浪漫的诗意。
C2 noun /ˈkɒksweɪn/

coxswain

舵手
Meaning
the person in charge of navigating and steering a boat, especially a racing or small boat
Example
The coxswain shouted instructions to the rowing team.
舵手向划船队发出了指令。
C2 noun /ˈbed.ləm/

Bedlam

混乱；嘈杂的混乱
Meaning
a scene of noisy confusion; chaos and disorder
Example
The classroom was complete bedlam after the fire alarm.
火灾警报后，教室变得完全混乱。
C2 verb /bɪˈtəʊkən/

betoken

预示
Meaning
to be a sign or indication of something
Example
Dark clouds betoken an approaching storm.
乌云预示着即将到来的暴风雨。
C2 adjective /ˈlɪtərəl/

littoral

沿海的
Meaning
Related to or situated on the shore of the sea or a lake.
Example
The littoral zone is home to many unique marine species.
沿海地区是许多独特海洋物种的栖息地。
C2 verb /ˈpɜːrdʒər/

perjure

作伪证
Meaning
To knowingly tell a lie in a court of law after swearing to tell the truth.
Example
He was accused of trying to perjure himself during the trial.
他被指控在审判过程中试图作伪证。
C2 noun /ˈkætɪtʃuː/

Catechu

凯特楚
Meaning
an extract from a tropical Asian plant, used in tanning and dyeing
Example
Catechu extract is commonly used in traditional medicine.
凯特楚提取物通常用于传统医学中。
C2 noun /əˈstɪɡmətɪzəm/

astigmatism

散光
Meaning
An eye defect causing blurred vision due to irregular curvature of the cornea or lens.
Example
She wears glasses to correct her astigmatism.
她戴眼镜来矫正她的散光。
C2 noun /ˌɛn.biː.esˈpiː/

nbsp

不间断空格
Meaning
a non-breaking space character in HTML used to prevent an automatic line break at its position
Example
Use   in HTML to add a space that won't break into a new line.
在HTML中使用 添加一个不会换行的空格。
C2 adjective /ˈtjuːmɪd/

tumid

肿胀的，膨胀的，或浮夸的风格
Meaning
Swollen, enlarged, or pompous in style.
Example
His tumid prose was difficult to read.
他的肿胀的散文很难阅读。
C2 adjective /ˈkwɒdreɪt/

quadrate

方形
Meaning
square or nearly square; having four sides or being suited or corresponding to something
Example
The tiles had a neat quadrate shape that made the floor look orderly.
瓷砖呈现出整齐的方形形状，使地板看起来整洁。
C2 noun /spɪˈlʌŋkər/

spelunker

洞穴探险者
Meaning
A person who explores caves as a hobby.
Example
The spelunker carried ropes and lights into the dark cave.
洞穴探险者带着绳子和灯光进入了黑暗的洞穴。
C2 noun /kænˈtɑː.tə/

cantata

康塔塔
Meaning
A vocal composition with instrumental accompaniment, typically in several movements, often involving a choir.
Example
The choir performed a beautiful cantata during the festival.
合唱团在节日期间演唱了美丽的康塔塔。
C2 noun /sɪnˈtɪl.ə/

scintilla

小小的火花
Meaning
A tiny trace or spark of a specified quality or feeling.
Example
There wasn’t a scintilla of doubt in her mind.
她的脑海中没有一丝疑虑。
C2 noun /krəˈdjuːlɪti/

credulity

轻信
Meaning
A tendency to be too ready to believe that something is real or true.
Example
The scam succeeded because of the victim's credulity.
诈骗因受害人的轻信而成功。
C2 adjective /ˈpjuːɪsənt/

puissant

强大的
Meaning
having great power or influence; mighty
Example
The king was a puissant ruler whose word was law.
国王是一个强大的统治者，他的话就是法律。
C2 adjective /trænsˈfjuːzəbl̩/

transfusible

可输血的
Meaning
capable of being transfused, especially referring to blood or fluids
Example
Only transfusible blood types are used in the hospital.
只有可输血的血型才会在医院使用。
C2 adjective /ˌrɒŋˈhɛd.ɪd/

wrongheaded

错误的思想
Meaning
Having or showing bad judgment or stubbornly holding to wrong ideas.
Example
The policy was considered wrongheaded and harmful.
这项政策被认为是错误的思想并且有害。
C2 adverb /ˈdɑːrklɪŋ/

darkling

在黑暗中
Meaning
In the dark or growing dark; dimly.
Example
The forest creatures moved darkling through the night.
森林生物在夜晚穿越黑暗。
C2 noun /ˈhoʊʒəri/

hosiery

长袜和腿部衣物
Meaning
Stockings, socks, and other knitted clothing for the legs and feet.
Example
She bought new hosiery for the winter season.
她为冬季季节买了新的长袜。
C2 verb /ˈtʃeɪfɪŋ/

chafing

摩擦引起疼痛
Meaning
To make sore by rubbing; to become irritated.
Example
The rough shoes were chafing his heels.
粗糙的鞋子擦痛了他的脚跟。
C2 verb /ɪkˈspʌndʒ/

expunge

擦除
Meaning
To erase or remove completely, often something unwanted.
Example
He managed to expunge the embarrassing memory from his mind.
他设法把尴尬的记忆从脑海中抹去。
C2 verb /ˈdɒdə/

dodder

颤抖着走路
Meaning
To move in a weak and unsteady way, especially due to old age.
Example
The old man doddered across the street with a cane.
那位老人拄着拐杖走过街道，步履蹒跚。
C2 noun /ˈæpədʒiː/

apogee

顶点
Meaning
the highest or most distant point; the climax or peak of something
Example
The empire reached its apogee during the 18th century.
帝国在18世纪达到了它的顶点。
C2 adjective /ˈkrɛdʒʊləs/

credulous

轻信的
Meaning
Having or showing too great a readiness to believe things.
Example
The credulous child believed every story she heard.
那个轻信的孩子相信了她听到的每一个故事。
C2 noun /ˌmæskəˈreɪd/

masquerade

一场人们佩戴面具和服装的聚会
Meaning
a party or gathering where people wear masks and costumes; a false outward show
Example
The charity event was held as a grand masquerade.
慈善活动作为一场盛大的 masquerade 举行。
C2 noun /ˈweɪstrəl/

wastrel

挥霍者, 无所事事的人
Meaning
A person who wastes time, money, or resources; an idler or spendthrift.
Example
The young man was dismissed as a wastrel by his family.
这个年轻人被他的家人当作挥霍者解雇了。
C2 verb /fɔɪst/

foist

强加
Meaning
To impose something unwelcome or unnecessary on someone.
Example
He tried to foist his old books onto his friends.
他试图把他的旧书强加给朋友们。
C2 verb /ˌɡeɪnˈseɪ/

gainsay

反驳
Meaning
To deny, contradict, or speak against.
Example
No one could gainsay the evidence presented in court.
没有人能够反驳法庭上提出的证据。
C2 verb /frɪz/

frizz

Meaning
to form into small, tight curls or cause hair to become fuzzy and tangled
Example
The humid weather caused her hair to frizz.
C2 noun /ˈdɛnɪzən/

denizen

居民
Meaning
an inhabitant or resident of a particular place
Example
The forest is home to many nocturnal denizens.
森林是许多夜行性居民的家。
C2 noun /rɪˈpruːf/

reproof

指责，谴责
Meaning
An expression of blame or disapproval.
Example
His careless words drew a sharp reproof from his mother.
他不小心的话语引来了母亲的严厉指责。
C2 noun /ˈbrɪn.dʒəl/

Brinjal

茄子
Meaning
a large purple vegetable that is white inside; also called eggplant
Example
My mother cooked brinjal curry for lunch.
我妈妈做了茄子咖喱作为午餐。
C2 adjective /ˈræfɪʃ/

raffish

不拘一格且稍微不太体面但又很有吸引力
Meaning
unconventional and slightly disreputable but attractive
Example
He had a raffish charm that made him popular in the city.
他有一种迷人的雷菲什魅力，使他在城市里非常受欢迎。
C2 noun /əˈnækrəˌnɪzəm/

anachronism

Meaning
something that is out of its proper time period, especially something old-fashioned in a modern context
Example
Using a typewriter today feels like an anachronism.
C2 verb /əˈpraɪz/

apprise

告知
Meaning
to inform or notify someone
Example
The manager will apprise the staff of the new policies.
经理将通知员工新的政策。
C2 verb /ɪnˈtriːt/

entreat

恳求
Meaning
To ask earnestly or beg someone to do something.
Example
She entreated him to stay a little longer.
她恳求他再待一会儿。
C2 noun /ˈoʊ.vər.let/

Overlet

床垫
Meaning
a thin mattress or pad placed over a bed for additional comfort
Example
The overlet makes the bed more comfortable to sleep on.
欧弗雷特使床铺更适合睡觉。
C2 adjective /ˈkɒrɪdʒəbl/

corrigible

可修正的
Meaning
capable of being corrected or improved
Example
The student's mistakes were corrigible with practice.
学生的错误通过练习是可以修正的。
C2 adjective /ˈkæloʊ/

callow

不成熟
Meaning
Inexperienced and immature.
Example
The callow intern made several mistakes on his first day.
那个缺乏经验的实习生在第一天犯了几个错误。
C2 verb /sʌbˈtɛnd/

subtend

形成角度
Meaning
To extend across or form an angle at a particular point, often used in geometry.
Example
The arc subtends a 60-degree angle at the center of the circle.
弧线在圆心处形成60度角。
C2 verb /ˈtʃɔːrtl/

chortle

轻松愉快地笑
Meaning
to laugh in a breathy, gleeful way
Example
The audience chortled at the comedian's witty remarks.
观众听到喜剧演员的机智评论后发出咯咯的笑声。
C2 verb /koʊˈhɪr/

cohere

结合
Meaning
To stick together; to be united logically or physically.
Example
The ideas in his essay cohere well.
他文章中的观点很好地结合在一起。
C2 adjective /ˈwɜːkmənˌlaɪk/

workmanlike

务实
Meaning
Showing efficient, competent, and practical skill, but without flair or creativity.
Example
The carpenter delivered a workmanlike performance on the project.
木匠在项目中交付了一个务实的表现。
C2 noun /ɪˈfʌldʒəns/

effulgence

光辉
Meaning
Brilliant radiance or shining brightness.
Example
The effulgence of the sunrise lit up the entire valley.
日出的光辉照亮了整个山谷。
C2 noun /ˈsɜːrklət/

circlet

Meaning
A small circular band, typically worn as an ornament on the head.
Example
The princess wore a golden circlet on her forehead.
C2 noun /luːn/

lune

新月
Meaning
A crescent-shaped figure formed by two intersecting arcs; also means 'moon' in French.
Example
The mathematician studied the properties of the lune.
数学家研究了新月的特性。
C2 noun /ˈdʒɛtsəm/

jetsam

从船上丢弃的无用物品，被冲到岸上的物品
Meaning
Unwanted material or goods thrown overboard from a ship and washed ashore.
Example
The beach was littered with jetsam after the storm.
风暴过后，海滩上充满了杰特萨姆。
C2 verb /ɪnˈdaɪt/

indite

创作
Meaning
To write or compose (literary or formal works).
Example
The poet indited a heartfelt sonnet.
诗人创作了一首真挚的十四行诗。
C2 noun /ˈtraɪdənt/

trident

三叉戟
Meaning
A three-pronged spear, often associated with Neptune or Poseidon.
Example
The statue of Poseidon holds a mighty trident.
波塞冬的雕像握着一把强大的三叉戟。
C2 adjective /ˌpɛntəˈveɪlənt/

pentavalent

五价
Meaning
Having a valence of five, especially in chemistry.
Example
Phosphorus can exist in a pentavalent state.
磷可以以五价状态存在。
C2 verb /ˌnɒnˈplʌst/

nonplused

困惑的
Meaning
Past tense of nonplus; surprised and confused.
Example
She was completely nonplused by his sudden decision.
她完全被他突如其来的决定弄得不知所措。
C2 noun /ˌɪnsəˈrɛkʃən/

insurrection

起义
Meaning
A violent uprising against an authority or government.
Example
The army was called in to suppress the insurrection.
军队被召来镇压起义。
C2 noun /pəˈtruːn/

poltroon

懦夫
Meaning
a cowardly person
Example
He acted like a poltroon during the crisis.
他在危机中像个懦夫一样表现。
C2 noun /ˈɒbsɪkwiːz/

obsequies

葬礼仪式
Meaning
Funeral rites or ceremonies.
Example
The obsequies for the late leader drew thousands of mourners.
已故领导人的葬礼吸引了成千上万的哀悼者。
C2 noun /ˈdɪktəm/

dictum

格言
Meaning
A formal pronouncement, authoritative statement, or maxim.
Example
The judge’s dictum clarified the principle of equality before the law.
法官的格言澄清了法律面前人人平等的原则。
C2 verb /lɔːd/

laud

Meaning
To praise someone or something highly, especially in public.
Example
The critic lauded the actor's performance as a masterpiece.
C2 noun /pɒmˈpɒsəti/

pomposity

自大, 傲慢
Meaning
self-important behavior or exaggerated dignity
Example
His speech was full of pomposity and arrogance.
他的演讲充满了自大和傲慢。
C2 adjective /ˈtɛsəleɪtɪd/

tessellated

马赛克
Meaning
arranged in a pattern of repeated shapes fitting together without gaps
Example
The tessellated floor was made of colorful tiles arranged in perfect symmetry.
马赛克地板由色彩斑斓的瓷砖组成，完美对称地排列。
C2 noun /ˈdʒɛntaɪl/

gentile

外邦人
Meaning
A person who is not Jewish
Example
The synagogue welcomed both Jews and Gentiles.
犹太会堂欢迎犹太人和外邦人。
C2 adjective /ˌpɜːrtɪˈneɪʃəs/

pertinacious

固执
Meaning
holding firmly to an opinion, purpose, or course of action; stubbornly persistent
Example
The pertinacious lawyer refused to give up the case.
固执的律师拒绝放弃案件。
C2 noun /ˈsɛkstənt/

sextant

六分仪
Meaning
a navigational instrument with a graduated arc of 60°, used to measure the angle between a celestial object and the horizon
Example
Using a sextant, the navigator fixed the ship’s position at noon.
使用六分仪，导航员在中午确定了船的位置。
C2 noun /ˌæpəˈleɪʃən/

appellation

名称 / 称号
Meaning
a name or title
Example
The city has earned the appellation 'The Big Apple'.
这座城市获得了‘大苹果’的称号。
C2 noun /ˈbrɪmˌstoʊn/

brimstone

Meaning
Sulfur, especially when considered as fiery and associated with hell or divine punishment.
Example
The preacher spoke of fire and brimstone to warn the congregation.
C2 noun /ɪmˈpruː.dəns/

Imprudence

轻率; 粗心; 不小心
Meaning
the quality of being imprudent; lack of care for consequences; recklessness
Example
His financial imprudence led to bankruptcy within just two years.
他的财务不谨慎导致了两年内破产。
C2 verb /ˌkaʊˈtaʊ/

kowtow

过度顺从
Meaning
To act in an excessively subservient or obedient manner.
Example
He refused to kowtow to the unreasonable demands.
他拒绝顺从不合理的要求。
C2 noun /krəˈnɒmɪtər/

chronometer

计时器
Meaning
An instrument for measuring time precisely, especially used in navigation.
Example
The sailor relied on the chronometer to determine his position at sea.
水手依靠计时器来确定他在海上的位置。
C2 adjective /sɪər/

sere

干枯
Meaning
Dry or withered, especially vegetation.
Example
The sere leaves crumbled under his feet.
干枯的叶子在他的脚下碎裂。
C2 adjective hjʊˈrɪs.tɪk

heuristic

启发式
Meaning
Enabling a person to discover or learn something for themselves; experimental learning approach.
Example
Teachers use heuristic techniques to encourage self-learning.
教师使用启发式技巧来鼓励自学。
C2 noun /əˈreɪ.bi.ən ˈdʒæz.mɪn/

Arabian Jasmine

阿拉伯茉莉
Meaning
A fragrant white flower native to South and Southeast Asia, commonly used in perfumes and religious ceremonies
Example
The Arabian jasmine filled the garden with its sweet fragrance.
阿拉伯茉莉花用它的甜美香气充满了花园。
C2 noun /ˈwɪtlɪŋ/

witling

傻瓜 / 假装聪明
Meaning
a person who has little wit or pretends to be witty
Example
He acted like a witling among scholars.
他在学者中表现得像个傻瓜。
C2 verb /kənˈsɪlieɪt/

conciliate

Meaning
to stop someone from being angry; to win over by friendly acts
Example
He tried to conciliate the angry customer with an apology.
C2 noun /lʌɡˈʒʊəriəns/

luxuriance

奢华
Meaning
abundant growth, richness, or elegance
Example
The garden was filled with the luxuriance of tropical plants.
花园里充满了热带植物的奢华。
C2 noun /dɪsˈjuːnjən/

disunion

分裂
Meaning
the state of being separated or not united
Example
Civil wars often result from national disunion.
内战通常由国家分裂引发。
C2 adjective /prəˈhɪbɪtɔːri/

prohibitory

禁止的
Meaning
Serving or tending to prohibit or forbid.
Example
The prohibitory laws were strictly enforced in the region.
禁止性的法律在该地区严格执行。
C2 adjective /ˌɪn.ɪˈlʌk.tə.bəl/

ineluctable

Meaning
Impossible to avoid or escape; inevitable.
Example
Death is an ineluctable part of human existence.
C2 noun /əˈkwaɪərmənt/

acquirement

获得；习得的能力
Meaning
the act of acquiring something; something that has been acquired, especially a skill or possession
Example
Language proficiency is an important acquirement for global careers.
语言能力是全球职业中的一项重要获得。
C2 noun /ˈkrɛməˌtɔːri/

crematory

火葬场
Meaning
a place where dead bodies are cremated
Example
The crematory was located near the cemetery.
火葬场位于墓地附近。
C2 adjective /juːˈʒʊəriəs/

usurious

高利贷的
Meaning
Charging excessively high interest rates on loans.
Example
The bank was accused of offering loans at usurious rates.
该银行被指控以高利贷利率提供贷款。
C2 noun /ˈleɪ.ɪ.ti/

laity

俗人
Meaning
Ordinary members of a religious community who are not clergy.
Example
The church welcomed the laity to participate in the event.
教堂欢迎俗人参加活动。
C2 noun /ˈɡɔːntlɪt/

gauntlet

护手 / 挑战
Meaning
a protective glove; a challenge or trial; to 'throw down the gauntlet' means to issue a challenge
Example
The knight threw down his gauntlet as a sign of challenge.
骑士把他的护手扔下，作为挑战的标志。
C2 adjective /ˌfærɪˈseɪɪkəl/

pharisaical

伪善的
Meaning
Excessively concerned with formal rules or outward show of morality, often in a hypocritical way.
Example
His pharisaical behavior made people doubt his sincerity.
他的伪善行为让人怀疑他的真诚。
C2 adjective /rɪˈmiːdiəbl/

remediable

可修复的
Meaning
capable of being corrected or cured
Example
The mistake was serious but still remediable.
这个错误很严重，但仍然是可修复的。
C2 adjective /səˈræfɪk/

seraphic

天使般的
Meaning
Of or like a seraph; angelic, pure, and blissful.
Example
She gave him a seraphic smile that calmed his fears.
她给了他一个天使般的微笑，安抚了他的恐惧。
C2 adjective /ˈfʊl.səm/

fulsome

过度的赞美
Meaning
Excessively flattering or insincere; abundant or generous in amount.
Example
He offered fulsome praise to his boss.
他给老板提供了过度的赞美。
C2 noun /ˌbenɪˈdɪkʃən/

Benediction

祝福
Meaning
a blessing, especially a ceremonial one; an expression of good wishes
Example
The priest gave his benediction to the newlyweds.
牧师给新婚夫妇带来了祝福。
C2 noun /ˈpæk.ɪ.dɜːrm/

pachyderm

具有厚皮的大型哺乳动物
Meaning
a large mammal with thick skin, such as an elephant, rhinoceros, or hippopotamus
Example
The zoo had several pachyderms, including elephants and rhinos.
动物园里有几只厚皮兽，包括大象和犀牛。
C2 noun /əˈbluːʃən/

ablution

净身
Meaning
the act of washing oneself, often for religious purposes
Example
He performed his morning ablution before the prayer.
他在祈祷之前进行了早晨的净身。
C2 noun /ˈsɜːfdəm/

serfdom

农奴制
Meaning
The status or condition of being a serf, bound to work for a lord.
Example
Many peasants in medieval Europe lived under serfdom.
许多中世纪欧洲的农民生活在农奴制下。
C2 verb /ˌriː.kəˈnɔɪ.tər/

reconnoiter

侦察
Meaning
to make a preliminary inspection or survey, especially of an area for military or strategic purposes
Example
The soldiers reconnoitered the area before advancing.
士兵们在前进前侦察了该区域。
C2 noun /maɪˈnjuːʃə/

minutia

琐事
Meaning
a small or trivial detail of something
Example
He was bored by the minutia of office paperwork.
他对办公室文件的琐事感到厌倦。
C2 noun /ˈnɑːstrəm/

nostrum

无效的药物
Meaning
a medicine or remedy, especially one that is not considered effective; a questionable solution
Example
The politician’s plan was dismissed as a mere nostrum for a complex problem.
政治家的计划被视为一个复杂问题的简单无效药物。
C2 noun /ˈɑːrbɪtər/

arbiter

仲裁者
Meaning
a person who has the authority to settle a dispute or decide an issue
Example
The principal acted as the arbiter in the conflict between the students.
校长在学生之间的冲突中充当了仲裁者。
C2 noun /ˈkɒntrəriz/

contraries

对立的事物
Meaning
things that are completely different or opposite to each other
Example
Freedom and slavery are contraries in every sense.
自由与奴隶制在各个方面都是对立的。
C2 noun /kəˈleɪʃən/

collation

汇编
Meaning
the act of collecting, comparing, and arranging in proper order
Example
The librarian spent hours on the collation of old manuscripts.
图书馆员花了几个小时整理古老的手稿。
C2 adjective /fɪˈdjuːʃəl/

fiducial

信任的，作为参考标准的
Meaning
based on trust or confidence; serving as a standard of reference
Example
The fiducial point on the map ensures accurate measurements.
地图上的菲杜西亚尔点确保了精确的测量。
C2 noun /ˈbrɪtɪˌsɪzəm/

briticism

英式英语的单词或特征
Meaning
a word, phrase, or characteristic feature of British English
Example
The word 'lorry' is a well-known Briticism.
'lorry' 这个词是一个著名的英式词汇。
C2 adjective /ˌsɛm.iˈsɪv.ə.laɪzd/

semicivilized

半文明
Meaning
Partially civilized; having some aspects of civilization but not fully developed.
Example
The tribe was described as semicivilized by early explorers.
该部落被早期探险家描述为半文明。
C2 verb /əˈbreɪd/

abrade

通过摩擦磨损
Meaning
to scrape or wear away the surface by friction or erosion
Example
The rough cloth can easily abrade the skin.
粗糙的布料容易磨损皮肤。
C2 verb /ɪˈreɪdieɪt/

irradiate

辐照
Meaning
to shine light on something; to expose to radiation; to illuminate or brighten
Example
The scientist used a lamp to irradiate the sample.
科学家用灯泡辐照了样本。
C2 adjective /pərˈsuːənt/

pursuant

根据
Meaning
in accordance with or following something, especially a law or rule
Example
The decision was made pursuant to the regulations.
决定是根据规定做出的。
C2 verb /bɪˈliːɡər/

beleaguer

围困, 烦扰
Meaning
to cause difficulties, troubles, or harassment; to surround with military forces
Example
The company was beleaguered by constant complaints from its customers.
该公司因客户不断的投诉而被围困。
C2 adjective /ˈsloʊθfəl/

slothful

懒惰
Meaning
Lazy, idle, and unwilling to work.
Example
She was too slothful to get out of bed early.
她太懒了，早上不想从床上起来。
C2 noun /ɪnˈsɪɡniə/

insignia

徽章
Meaning
A badge or symbol that shows rank, position, or membership.
Example
The soldier proudly wore the insignia of his regiment.
士兵自豪地佩戴着他团的徽章。
C2 noun /ˌθiːəˈloʊdʒən/

theologian

神学家
Meaning
A person who studies or is an expert in theology.
Example
Theologians often debate complex questions of faith and morality.
神学家们经常就信仰和道德的复杂问题展开辩论。
C2 adjective /mɜːrˈkjʊriəl/

mercurial

善变的
Meaning
subject to sudden or unpredictable changes of mood or mind.
Example
She is known for her mercurial temperament.
她以其善变的脾气而闻名。
C2 noun /ˈlæŋɡər/

languor

倦怠
Meaning
A state of tiredness, inertia, or dreamy relaxation.
Example
The hot afternoon filled her with languor.
炎热的下午让她感到疲倦。
C2 verb /ɪkˈspɒstjʊleɪt/

expostulate

表示不同意见
Meaning
to express strong disapproval or disagreement
Example
She expostulated with her friend about the risky decision.
她对她朋友关于冒险决定的看法表达了不同意见。
C2 noun /ɪˈlɪziəm/

elysium

极乐
Meaning
A place or state of perfect happiness; in Greek mythology, the afterlife paradise.
Example
For her, the garden was a personal elysium.
对她来说，花园是一个个人的极乐世界。
C2 noun /ˈɔːlmənæk/

almanac

年鉴
Meaning
An annual publication containing calendars, weather forecasts, astronomical data, and other useful information.
Example
He consulted the almanac to check the phases of the moon.
他查阅了年鉴，以查看月亮的各个阶段。
C2 noun /ˌɪnvəˈkeɪʃən/

invocation

祈求
Meaning
the act of calling upon a higher power for help, blessing, or inspiration
Example
The ceremony began with an invocation to the gods.
仪式以对神的祈求开始。
C2 adjective /ˈʌndjʊleɪtɪŋ/

undulating

波动的
Meaning
Having a smoothly rising and falling form or motion like waves.
Example
We drove through undulating hills.
我们驱车穿过起伏的山丘。
C2 noun /ˈɑːrbərɪˌkʌltʃər/

arboriculture

树艺学
Meaning
the cultivation and management of trees and shrubs
Example
He studied arboriculture to improve urban green spaces.
他学习了树艺学以改善城市绿地。
C2 noun, adjective /nɒn ˈkɒmbətənt/

non-combatant

非战斗人员
Meaning
a person not engaged in fighting during a war, such as civilians or medical staff
Example
The Red Cross workers were treated as non-combatants in the conflict.
红十字会的工作人员在冲突中被视为非战斗人员。
C2 adjective /ɪkˈstɛnsəbl/

extensible

可扩展的
Meaning
able to be extended; capable of expansion.
Example
The software is designed to be extensible with new features.
该软件设计为可以通过新功能扩展。
C2 noun /dɪˈpləʊmətɪst/

diplomatist

外交官
Meaning
A person skilled in diplomacy; another word for diplomat.
Example
The diplomatist handled the negotiations with great tact.
外交官以极大的技巧处理了谈判。
C2 noun /ˈskɪnˌflɪnt/

skinflint

吝啬鬼
Meaning
a person who spends as little money as possible; a miser
Example
The landlord was such a skinflint that he never repaired anything.
房东是个吝啬鬼，从不修理任何东西。