Oilman
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C2 noun /ˈɔɪl.mən/

Oilman

石油商
Meaning
a person who works in the oil industry; someone who sells oil or petroleum products
Example
The oilman discovered a new oil field in the desert.
石油商在沙漠中发现了一个新的油田。
C2 verb /ˈrævəl/

ravel

缠绕 / 解开
Meaning
to tangle or complicate; to untangle or unravel depending on context
Example
She began to ravel the loose threads of the sweater.
她开始解开毛衣上的松线。
C2 verb /ɪˈnæmər/

enamor

爱慕
Meaning
to be filled with love or admiration for
Example
She was enamored with the beautiful scenery.
她爱上了美丽的风景。
C2 adjective /səˈdʒɛstəbəl/

suggestible

易受影响的
Meaning
easily influenced by the suggestions of others
Example
Children are highly suggestible and may believe what they are told.
孩子们很容易受到影响，可能会相信他们被告知的事情。
C2 noun /mæn əv wɔːr/

Man of war

战舰
Meaning
a warship; a naval vessel equipped with weapons for warfare
Example
The man of war sailed across the ocean to defend the coast.
战舰横渡大洋，保护海岸。
C2 noun /əˈrɔɪ.oʊ/

arroyo

干河床
Meaning
A dry creek or stream bed that temporarily fills with water after heavy rain.
Example
After the storm, the arroyo quickly filled with rushing water.
风暴过后，干河床迅速被水填满。
C2 adjective /ˌnɒnˈtrɪviəl/

nontrivial

非平凡
Meaning
Not simple or easy; requiring effort or significant thought.
Example
Solving the equation turned out to be a nontrivial task.
解决方程被证明是一个非平凡的任务。
C2 noun /ræŋˈɡuːn ˈkriːpər/

Rangoon creeper

缅甸爬山虎
Meaning
A climbing vine with fragrant flowers that change color from white to pink to red
Example
The Rangoon creeper covered the entire fence with its sweet-smelling flowers.
缅甸爬山虎用它甜美的花朵覆盖了整个篱笆。
C2 adjective /dʒʊˈrɪdɪkəl/

juridical

司法的
Meaning
Relating to judicial proceedings or the administration of law.
Example
The case raised important juridical questions.
此案件提出了重要的司法问题。
C2 noun /hɜːrˈbɛəriəm/

herbarium

植物标本馆
Meaning
A collection of preserved plant specimens and associated data used for scientific study.
Example
The university maintains a large herbarium for research and education.
大学为研究和教育保持着一个大型植物标本馆。
C2 noun /nuːt/

Newt

蝾螈
Meaning
a small amphibian with a long tail that lives both in water and on land
Example
The newt swam gracefully in the pond.
蝾螈优雅地在池塘里游泳。
C2 noun /ˌskʌlˈdʌɡəri/

skullduggery

欺诈
Meaning
dishonest behavior or activities, often done secretly
Example
The election was full of political skullduggery.
选举充满了政治欺诈。
C2 noun /ˈɡɜːrdər/

girder

钢梁
Meaning
a large, strong beam used to support buildings or bridges
Example
The steel girders held the weight of the bridge.
钢铁梁支撑了桥的重量。
C2 adjective /ɛmˈpaɪriəl/

empyreal

天国的
Meaning
Heavenly, divine, or relating to the highest heavens.
Example
The poet described the empyreal beauty of the stars.
诗人描述了星星的天国美丽。
C2 noun /ˌiː.tiˈɒ.lə.dʒi/

etiology

病因学
Meaning
the cause or origin of a disease or condition
Example
Doctors are studying the etiology of the new virus.
医生们正在研究新病毒的病因学。
C2 noun /ˈmeɪdənˌhʊd/

maidenhood

少女期
Meaning
The state of being a maiden; girlhood or virginity.
Example
The poem celebrated the innocence of maidenhood.
这首诗歌庆祝了少女时期的纯真。
C2 adjective /ˌhɑːrdˈbɪtn̩/

hard-bitten

坚韧且经验丰富
Meaning
tough and experienced, not easily affected by emotions or hardship
Example
The hard-bitten detective showed no sign of surprise at the crime scene.
那个经验丰富的侦探在犯罪现场毫无惊讶之情。
C2 adjective /dɪˈstɛnsəbl̩/

distensible

可伸展的
Meaning
Capable of being stretched or expanded.
Example
The stomach is a distensible organ that can expand after eating.
胃是一个可伸展的器官，在进食后可以膨胀。
C2 verb /rɔɪl/

roil

搅动
Meaning
to make a liquid muddy or disturbed; to cause agitation or disorder
Example
The constant protests roiled the city streets.
持续的抗议活动搅动了城市的街道。
C2 noun /ˌkɔːrnjuˈkoʊpiə/

cornucopia

某物的丰盈或溢出的供应
Meaning
an abundance or overflowing supply of something
Example
The festival offered a cornucopia of fruits and sweets.
节日提供了丰盛的水果和糖果。
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 /sɪˈkwiːlə/

sequela

后遗症
Meaning
A condition that is the consequence of a previous disease or injury.
Example
Lung scarring can be a sequela of severe pneumonia.
肺部瘢痕可能是重症肺炎的后遗症。
C2 noun /ˈhɒdʒ.pɒdʒ/

hodgepodge

混杂物
Meaning
A confusing mixture of different things; a jumble.
Example
The essay was a hodgepodge of unrelated ideas.
这篇文章是一些不相关的想法的混杂物。
C2 noun /ˈdaɪəˌdɛm/

diadem

冕冠
Meaning
A crown or headband worn as a symbol of royalty or authority.
Example
The queen wore a glittering diadem at the coronation.
女王在加冕仪式上戴着闪闪发光的王冠。
C2 verb /dɪˈmɜːr/

demur

反对
Meaning
to raise doubts, objections, or show reluctance
Example
She agreed to help without demur.
她同意在没有异议的情况下提供帮助。
C2 verb /pərˈtɪkjələrˌaɪz/

particularize

具体说明
Meaning
to mention or describe something in detail
Example
The witness was asked to particularize the events of that night.
证人被要求详细叙述那个夜晚的事件。
C2 adjective /ˈbɛlɪˌkoʊs/

bellicose

好战的
Meaning
Showing a tendency to argue or fight; aggressive.
Example
His bellicose attitude often got him into unnecessary conflicts.
他好战的态度常常让他卷入不必要的冲突。
C2 noun /ˈskɪz.əm/ or /ˈsɪz.əm/

schism

幸福
Meaning
A division or split between strongly opposed parties, often in religion or organizations.
Example
The schism in the church led to the formation of two separate groups.
她在收到奖项时无法掩饰她的幸福。
C2 noun /ˈlæsɪtjuːd/

lassitude

疲劳
Meaning
a state of physical or mental weariness; lack of energy
Example
After the long hike, a feeling of lassitude swept over the group.
长时间徒步后，疲劳感笼罩了整个团队。
C2 adjective /ˈlaɪbələs/

libelous

诽谤的
Meaning
containing or constituting a false published statement that damages a person's reputation
Example
The article was found to be libelous and had to be retracted.
该文章被认为是诽谤的，必须撤回。
C2 noun /hɪˈlærɪti/

hilarity

爆笑
Meaning
Extreme amusement, especially when expressed by laughter.
Example
The movie caused great hilarity among the audience.
这部电影在观众中引起了极大的爆笑。
C2 verb /ˈbækbaɪt/

backbite

背后说坏话
Meaning
to speak negatively about someone who is not present; to slander behind someone’s back
Example
It is wrong to backbite your colleagues behind their backs.
在背后说同事的坏话是不对的。
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 /kruːn/

croon

用柔和、低沉、温柔的声音唱歌或哼歌
Meaning
to sing or hum in a soft, low, and gentle voice
Example
She crooned a lullaby to help the baby fall asleep.
她唱着摇篮曲帮助婴儿入睡。
C2 adjective /ˈæpəˌleɪt/

appellate

与上诉有关
Meaning
relating to appeals in a court of law
Example
The case was taken to an appellate court.
案件被提交给了上诉法院。
C2 adjective /ˈpɔːntʃi/

paunchy

大肚子
Meaning
Having a large or protruding belly.
Example
The paunchy man struggled to button his shirt.
那个大肚子男人在努力扣上他的衬衫纽扣。
C2 noun /ˈmætrɪˌsaɪd/

matricide

弑母
Meaning
The act of killing one's own mother.
Example
The crime of matricide shocked the entire town.
弑母罪震惊了整个城市。
C2 noun /ˈpɛstɪləns/

pestilence

瘟疫
Meaning
A deadly or virulent epidemic disease that spreads rapidly.
Example
The medieval city was devastated by a pestilence.
中世纪的城市被瘟疫摧毁。
C2 noun /luːˈsɪd.ə.ti/

lucidity

清晰
Meaning
Clarity of thought or style; the quality of being easily understood.
Example
His explanation had great lucidity, making it easy to understand.
他的解释非常清晰，使得理解变得容易。
C2 noun /ˈtrʌmpəri/

trumpery

毫无价值的废话或浮华但无价值的东西
Meaning
worthless nonsense or showy but worthless things
Example
The speech was full of political trumpery.
这个演讲充满了政治废话。
C2 noun /ˈvɪntnər/

vintner

酿酒师 / 酒商
Meaning
A person who makes or sells wine.
Example
The vintner explained the process of making red wine.
酿酒师解释了酿制红葡萄酒的过程。
C2 adjective /sɛnˈsɔːriəs/

censorious

过分挑剔
Meaning
severely critical of others
Example
She was always censorious about her colleagues' mistakes.
她总是对同事们的错误非常挑剔。
C2 verb /lʌɡˈʒʊrieɪt/

luxuriate

沉溺于奢华
Meaning
to enjoy something in a self-indulgent way; to take pleasure in great comfort
Example
She luxuriated in the warm bubble bath after a long day.
她在一个漫长的日子后沉浸在温暖的气泡浴中。
C2 adjective /ˈsæpɪd/

sapid

美味的
Meaning
Having a pleasant taste; flavorful.
Example
The chef prepared a sapid dish that delighted everyone at the table.
厨师准备了一道美味的菜肴，令桌上的每个人都非常喜欢。
C2 adjective /ɪˈlɪmɪtəbl/

illimitable

无限
Meaning
Without limits or bounds.
Example
The universe is often described as illimitable.
宇宙常被描述为无限的。
C2 noun /dɪˈpɑːzɪtər/

depositor

存款人
Meaning
a person who places money in a bank or financial institution
Example
The bank provides insurance to protect depositors’ funds.
银行提供保险来保护存款人的资金。
C2 noun /ˈiːsθiːt/ or /ˈɛsθiːt/

aesthete

审美家
Meaning
A person who has a special appreciation of art and beauty.
Example
The aesthete admired the subtle details of the painting.
艾斯泰特欣赏了画作的细节。
C2 noun /ˈɡraɪndstoʊn/

grindstone

磨刀石
Meaning
a thick disc of stone used for grinding, sharpening, or polishing tools
Example
The blacksmith sharpened his blade on the grindstone.
铁匠在磨刀石上磨快了他的刀片。
C2 noun /ˈtɛsteɪtər/

testator

立遗嘱人
Meaning
a person who has made a will
Example
The lawyer read the will of the deceased testator.
律师朗读了已故立遗嘱人的遗嘱。
C2 verb /ˌaʊtməˈnuːvər/

outmaneuver

巧妙地战胜
Meaning
to gain an advantage over an opponent by skillful or clever action
Example
The smaller company managed to outmaneuver its larger rival.
小公司成功地战胜了它的大对手。
C2 adjective, noun /pləˈbiːən/

plebian

普通的，平民的
Meaning
alternate spelling of 'plebeian'; common or ordinary
Example
His tastes were rather plebian, favoring simple food and clothes.
他的口味相当普通，喜欢简单的食物和衣服。
C2 noun /ˈkɪŋɡlɪŋ/

kingling

小国王
Meaning
A minor or petty king; a ruler of small importance.
Example
The kingling demanded respect from his people despite his small realm.
那个小国王尽管有一个小王国，但他要求人民尊敬他。
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。
C2 noun /proʊˈdʒɛnɪtər/

progenitor

祖先
Meaning
a direct ancestor; a person or thing that originates something
Example
Researchers traced the custom back to a common progenitor.
研究人员追溯了这个习俗，发现它源自一个共同的祖先。
C2 noun /ˌlɛdʒərdəˈmeɪn/

legerdemain

魔术, 欺骗
Meaning
skillful use of one's hands when performing tricks; deception or trickery
Example
The magician's legerdemain left the audience amazed.
魔术师的手法让观众惊讶不已。
C2 noun /ˌvɛrɪsɪˈmɪlɪtjuːd/

verisimilitude

逼真
Meaning
the appearance of being true or real
Example
The movie was praised for its verisimilitude to actual events.
这部电影因其与实际事件的逼真感而受到称赞。
C2 adjective /ˌaɪ.kə.nəˈklæs.tɪk/

iconoclastic

特指攻击或拒绝已建立的信仰、传统或价值观
Meaning
Characterized by attacking or rejecting cherished beliefs, traditions, or established values.
Example
Her iconoclastic views challenged the conventional wisdom of the industry.
她的偶像破坏主义观点挑战了行业的传统智慧。
C2 verb /kənˈvoʊk/

convoke

召集
Meaning
to call together or summon a meeting or assembly
Example
The committee convoked an emergency session to discuss the crisis.
委员会召集了紧急会议讨论危机。
C2 noun /blæk biː/

Black-bee

黑蜜蜂
Meaning
a large dark-colored bee that makes a loud buzzing sound
Example
The black-bee was buzzing around the flowers in the garden.
黑蜜蜂在花园里的花丛中嗡嗡作响。
C2 noun /ˌvælədɪkˈtɔːriən/

valedictorian

最佳学生
Meaning
The student with the highest academic achievements in a graduating class, often chosen to give the farewell speech.
Example
She was honored as the valedictorian of her class.
她被尊为班级的最佳学生。
C2 adjective /ˌʌn.rɪˈdʒɛn.ər.ət/

unregenerate

顽固
Meaning
Not reformed or showing no signs of change; stubbornly refusing to reform or repent.
Example
He remained an unregenerate opponent of progress.
他仍然是进步的顽固反对者。
C2 adjective /ˈfætʃuəs/

fatuous

愚蠢
Meaning
silly or foolish, especially in a self-satisfied way
Example
His fatuous comments during the meeting annoyed everyone.
他在会议中的愚蠢评论让所有人都感到烦恼。
C2 verb /dʒɪr/

jeer

嘲笑
Meaning
to laugh at someone or something in a cruel or mocking way
Example
The crowd began to jeer at the opposing team.
人群开始对对方球队嘲笑。
C2 adjective /vɛˈstɪdʒiəl/

vestigial

遗迹的
Meaning
Relating to a small, undeveloped remnant of something that was once much larger or more functional.
Example
Humans have a vestigial tailbone that no longer serves its original purpose.
人类有一个遗迹的尾骨，它不再执行其原始功能。
C2 verb /ˌpriːɪɡˈzɪst/

preexist

提前存在
Meaning
to exist beforehand or before something else
Example
These customs preexist the arrival of modern technology.
这些习俗早于现代技术的到来而存在。
C2 verb /dɪˈsɛmbəl/

dissemble

假装
Meaning
to conceal one's true motives, feelings, or beliefs; to pretend
Example
He tried to dissemble his anger with a forced smile.
他试图用强颜欢笑来掩饰自己的愤怒。
C2 verb /dɪˈkæmp/

decamp

逃跑
Meaning
To depart suddenly or secretly, often to avoid trouble or escape.
Example
The thief decamped before the police arrived.
小偷在警察到达之前就逃走了。
C2 noun /ˈæl.ɪ.mənt/

aliment

食物
Meaning
food or nourishment that sustains life
Example
Fruits and vegetables are important aliments for a healthy body.
水果和蔬菜是维持健康身体的重要食物。
C2 noun /dɛnˈdrɒlədʒi/

dendrology

Meaning
the scientific study of trees and woody plants
Example
He is studying dendrology at the university.
C2 adjective /ʌnˈʌtərəbl/

unutterable

难以言喻
Meaning
Too great, intense, or awful to be expressed or described in words.
Example
She was filled with unutterable joy at the news of her success.
她听到成功的消息时充满了难以形容的喜悦。
C2 noun /ˈmɪsɪv/

missive

信件
Meaning
a written message, especially a formal or official letter
Example
He sent a long missive to the governor.
他给州长发送了一封长信。
C2 adjective /ˈlaɪðsəm/

lithesome

柔韧且优雅
Meaning
gracefully flexible and supple
Example
Her lithesome figure allowed her to move like a ballerina.
她的柔韧身姿使她能像芭蕾舞者一样舞动。
C2 noun /ˈflætʃələns/

flatulence

消化系统中的气体积聚
Meaning
the accumulation of gas in the digestive system; excessive gas in the stomach or intestines
Example
Eating beans can sometimes cause flatulence.
吃豆子有时会引起腹胀。
C2 adjective /suːˈpɜːrnəl/

supernal

天上的
Meaning
Relating to the heavens; celestial or divine.
Example
The painting captured a supernal beauty that felt otherworldly.
这幅画捕捉到了一个天上的美丽，感觉像是另一个世界的。
C2 adjective /pʌŋkˈtɪliəs/

punctilious

一丝不苟
Meaning
Showing great attention to detail or correct behavior.
Example
She was punctilious in her attention to etiquette.
她对礼仪的关注非常一丝不苟。
C2 noun /ˈɒfərtɔːri/

offertory

奉献
Meaning
The part of a religious service when offerings are collected; the offering itself.
Example
The offertory was taken during the Sunday service.
奉献在星期日的礼拜期间收集。
C2 verb /dɔːb/

daub

涂抹
Meaning
to spread a thick or sticky substance carelessly on a surface
Example
The children daubed paint all over the walls.
孩子们把油漆涂遍了墙壁。
C2 noun /lɒx/ or /lɒk/

lough

湖泊
Meaning
An Irish or Scottish word for a lake or sea inlet.
Example
The fishermen lived by the lough for generations.
渔民们世世代代住在湖泊旁边。
C2 verb /læmˈbeɪst/

lambaste

严厉批评
Meaning
to criticize someone or something harshly; to reprimand severely
Example
The teacher lambasted the students for not completing their homework.
老师因学生未完成作业而严厉批评了他们。
C2 noun /ˈbæs.tərd tiːk/

Bastard teak

黄花檀
Meaning
A flowering tree with bright orange-red flowers, also known as flame of the forest
Example
The bastard teak tree blooms with vibrant orange flowers in spring.
黄花檀树在春天开出鲜艳的橙色花朵。
C2 noun /ˈvaɪsrɔɪ/

viceroy

副总督
Meaning
a ruler exercising authority on behalf of a sovereign in a colony or province
Example
The viceroy governed the colony in the king's name.
副总督以国王的名义治理殖民地。
C2 noun /ˈɪəri/

eyry

猛禽巢
Meaning
an alternative spelling of eyrie; a nest of a bird of prey
Example
The falcon guarded its eyry fiercely.
猎鹰猛烈地守护着它的巢。
C2 adjective /səˈɡeɪ.ʃəs/

sagacious

贤明
Meaning
Having or showing keen mental discernment and good judgment; wise.
Example
His sagacious leadership saved the company from failure.
他的贤明领导力使公司免于失败。
C2 adjective, adverb /əˈbʌvˌbɔːrd/

aboveboard

诚实和公开
Meaning
Open and honest; without deception or trickery.
Example
The business deal was completely aboveboard.
商业交易完全诚实和公开。
C2 adjective ˈɛr.jʊ.daɪt

erudite

博学的或聪明的
Meaning
Having or showing great knowledge or learning; scholarly and intellectual.
Example
The professor's erudite lecture fascinated the students.
教授的博学讲座让学生们着迷。
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 noun /ˌprɪnsɪˈpæləti/

principality

公国
Meaning
a state ruled by a prince
Example
Monaco is a famous principality in Europe.
摩纳哥是欧洲著名的公国。
C2 verb /ˈfɛstər/

fester

恶化, 加剧
Meaning
to become worse or more intense, often through neglect or infection
Example
If grievances are ignored, they may fester into resentment.
如果不理会抱怨，它们可能会变成怨恨。
C2 noun /ˈpjuːɪsəns/

puissance

权力
Meaning
Great power, strength, or influence.
Example
The empire showed its puissance through vast armies.
帝国通过庞大的军队展现了其权力。
C2 noun /ˈsaɪ.nəˌʃʊr/

cynosure

众人焦点
Meaning
A person or thing that is the center of attention or admiration.
Example
She was the cynosure of all eyes at the party.
她是派对上所有人焦点。
C2 noun dɪsˈbɜːs.mənt

disbursement

支付
Meaning
The payment of money from a fund.
Example
The company's disbursement of salaries was delayed.
公司的工资支付被延迟了。
C2 noun /beɪz/

baize

一种粗糙的羊毛布料
Meaning
A type of coarse woolen cloth, often green, used for covering tables such as billiard tables.
Example
The old card table was covered with worn baize.
旧的扑克牌桌上覆盖着磨损的贝兹布料。
C2 noun /ˈbrɪk.bæt/

Brickbat

一块砖块；严厉的批评或谴责
Meaning
a piece of brick, especially one used as a missile; harsh criticism or censure
Example
The angry protesters threw brickbats at the building windows.
愤怒的抗议者将砖块扔向建筑物的窗户。
C2 adjective /ˌɪrɪˈfrændʒɪbəl/

irrefrangible

不可侵犯的
Meaning
Not to be broken, violated, or infringed
Example
The constitution guarantees certain irrefrangible rights to every citizen.
宪法保证每个公民享有某些不可侵犯的权利。
C2 noun /ˈzuːəʊˌplæŋktən/

zooplankton

浮游动物
Meaning
Microscopic aquatic animals that drift in water bodies and form an essential part of the aquatic food chain, serving as food for fish and other marine organisms.
Example
Zooplankton plays an important role in the aquatic food chain.
浮游动物在水生食物链中起着重要作用。
C2 adjective /ˈbaɪ.fərˌkeɪ.tɪd/

bifurcated

分成两部分
Meaning
Divided into two branches or parts.
Example
The river became bifurcated as it flowed around the island.
河流分成两部分，当它绕过岛屿时。
C2 noun ˌkɒmpjʊˈteɪʃənəl kəˌmjuːnɪˈkeɪʃən

computational communication

计算通信
Meaning
Digital exchange and automated interaction; the use of computational methods and systems to facilitate communication and information sharing.
Example
Computational communication is reshaping how we share information.
计算通信正在重塑我们共享信息的方式。
C2 verb /əˈbæʃ/

abash

使难堪
Meaning
to make someone feel embarrassed or ashamed
Example
Her sudden question seemed to abash him.
她突然的问题似乎让他感到尴尬。
C2 noun /ˈplɛnɪtjuːd/

plenitude

丰富
Meaning
the condition of being full or abundant; a great quantity
Example
The garden was a plenitude of flowers in spring.
春天的花园充满了花卉的丰富性。
C2 noun /ɪˈlɪksər/

elixir

灵药
Meaning
A magical or medicinal potion believed to cure illnesses or grant immortality.
Example
The old legend spoke of an elixir that could grant eternal youth.
古老的传说中提到了一个可以赋予永恒青春的灵药。
C2 noun /ɡæsˈtraɪtɪs/

gastritis

胃炎
Meaning
Inflammation of the lining of the stomach.
Example
The doctor diagnosed him with gastritis after his endoscopy.
医生在他的内窥镜检查后诊断为胃炎。
C2 adjective /rɪˈdjuːsəbl̩/

reducible

Meaning
capable of being simplified, lessened, or made smaller
Example
The problem is complex but reducible to a few basic principles.
C2 adverb /ˌɛkspəˈdɪʃəsli/

expeditiously

迅速而高效地
Meaning
in a quick and efficient manner
Example
The application was processed expeditiously.
申请被迅速而高效地处理了。
C2 noun /ɪˌlɛkˈtrɑː.lə.sɪs/

electrolysis

电解
Meaning
A chemical decomposition produced by passing an electric current through a liquid or solution.
Example
Electrolysis is used to separate hydrogen from water.
电解被用于从水中分离氢气。
C2 adjective /pərˈfɛktəbl/

perfectible

可完善的
Meaning
capable of being made perfect or improved
Example
Human nature is imperfect but perfectible.
人性是不完美的，但可以完善。
C2 noun /ˌrɛv.əˈkeɪ.ʃən/

revocation

撤销
Meaning
The act of officially canceling or withdrawing something.
Example
The court ordered the revocation of his license.
法院命令撤销他的许可证。
C2 noun /ˈɔːldər/

alder

榆树
Meaning
A type of tree from the birch family that typically grows in wet ground and has simple, serrated leaves.
Example
The alder trees grew thick along the riverbank.
榆树在河岸旁茂密生长。
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 /əˈfaɪəns/

affiance

订婚
Meaning
to promise or pledge marriage; to formally engage
Example
They decided to affiance after years of friendship.
多年友谊之后，他们决定订婚。
C2 noun /kəˈlɒsəs/

colossus

巨人
Meaning
A person or thing of enormous size, importance, or ability.
Example
Einstein was a colossus in the world of science.
爱因斯坦是科学界的巨人。
C2 adjective /ˈflæs.ɪd/

Flaccid

软弱的; 无力的; 松弛的;
Meaning
soft and limp; lacking firmness; drooping
Example
The plant's leaves became flaccid after days without water.
在没有水的几天后，植物的叶子变得软弱无力。
C2 noun /ˈænθrəsaɪt/

anthracite

硬煤
Meaning
A hard, shiny form of coal that burns with little smoke and a high heat value.
Example
The factory used anthracite as its primary fuel source.
工厂使用海棉石作为主要燃料来源。
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 noun /ˈrɪɡməˌroʊl/

rigmarole

麻烦事
Meaning
a long, complicated, and confusing process or story
Example
Getting a visa was such a rigmarole of paperwork and interviews.
获得签证是一个繁琐的文书工作和面试过程。
C2 noun /ˈkɒkskoʊm/

Cockscomb

公鸡冠花
Meaning
a tropical plant with bright, velvety flowers that resemble a rooster's comb
Example
The bright red cockscomb flowers added vibrant color to the garden bed.
鲜艳的红色公鸡冠花为花坛增添了生动的色彩。
C2 verb /əˈsɪdɪfaɪ/

acidify

酸化
Meaning
to make something acidic or more acidic
Example
Farmers worry that pollution will acidify the soil.
农民担心污染会使土壤酸化。
C2 noun /ˈpɔːrtɛnt/

portent

前兆
Meaning
A sign or warning that something, especially something momentous or calamitous, is likely to happen.
Example
The sudden drop in stock prices was seen as a portent of economic trouble.
股票价格的突然下跌被视为经济问题的前兆。
C2 noun /ˈdɛswɪˌtuːd/

desuetude

废弃
Meaning
a state of disuse or inactivity
Example
The old law has fallen into desuetude.
旧法律已经废弃。
C2 noun /ˈɛpɪˌsaɪkl/

epicycle

外行星环
Meaning
a small circle whose center moves around the circumference of a larger one, used in ancient astronomy
Example
The concept of the epicycle was used to explain planetary motion.
外行星环的概念被用来解释行星的运动。
C2 verb /əˈvʌls/

avulse

撕裂
Meaning
to tear away or separate forcibly, especially in medical or geological contexts
Example
The surgeon had to avulse the damaged tissue during the operation.
外科医生在手术中必须把受损的组织撕裂。
C2 noun /ɑːlˈfækʃən/

olfaction

嗅觉
Meaning
The sense of smell; the process of detecting and perceiving odors.
Example
Dogs have a highly developed sense of olfaction.
狗的嗅觉非常发达。