astigmatism
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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 /əˈsper.ɪ.ti/

asperity

Meaning
Harshness of tone, manner, or surface.
Example
She spoke with asperity when she was interrupted.
C2 noun /ˈɔːldərmən/

alderman

市议会成员
Meaning
An elected member of a municipal council in certain cities and towns.
Example
The alderman proposed a new plan for community parks.
市议员提出了一个新的社区公园计划。
C2 noun /ˈæn.əlz/

annals

年鉴
Meaning
Historical records of events, usually arranged chronologically.
Example
Her name will be remembered in the annals of science.
她的名字将在科学年鉴中被铭记。
C2 verb /ˈæntɪdeɪtɪd/

antedated

提前日期
Meaning
assigned to an earlier date than the actual one; happened earlier
Example
The letter was antedated to appear more official.
信件被提前日期化，以使其看起来更官方。
C2 noun əˌten.juˈeɪ.ʃən

attenuation

衰减, 减弱, 缩小
Meaning
The reduction of the force, effect, or value of something.
Example
The attenuation of sound waves affects communication.
声音波的衰减会影响通讯。
C2 verb /ˈæntɪkweɪt/

antiquate

过时
Meaning
To make something old-fashioned or obsolete.
Example
The rise of digital cameras antiquated traditional film photography.
数字相机的崛起使传统胶片摄影过时。
C2 noun /ˈædʒ.ə.tənt/

Adjutant

阿金顿鹳
Meaning
a large water bird with long legs and neck, also known as adjutant stork
Example
The adjutant stork stood motionless in the shallow water.
那只阿金顿鹳站在浅水中不动。
C2 adjective /ænˈhaɪdrəs/

anhydrous

Meaning
Containing no water.
Example
The chemist used anhydrous ammonia for the experiment.
C2 noun/adjective /ˈæl.əˌbæs.tər/

alabaster

白色矿石（类似石膏的矿物）
Meaning
A fine-grained, usually white variety of gypsum, often used for carving; also describes something smooth and pale like alabaster.
Example
The statue was carved from pure alabaster.
雕像是用纯净的阿拉巴斯特雕刻的。
C2 adjective /eɪˈsɛptɪk/

aseptic

无菌的
Meaning
Free from contamination caused by harmful microorganisms; sterile.
Example
Surgeons must work in an aseptic environment to prevent infection.
外科医生必须在无菌环境中工作，以防止感染。
C2 noun (plural) /əˈspɜːr.ʒənz/

aspersions

诽谤
Meaning
Critical or slanderous remarks; multiple attacks on reputation.
Example
The politician rejected the aspersions cast against him.
政治家拒绝了针对他的诽谤。
C2 adjective əˈdrɔɪt

adroit

熟练的, 灵巧的, 精通的
Meaning
clever or skillful in using the hands or mind.
Example
She is adroit at solving complex problems.
她擅长解决复杂的问题。
C2 noun /ˌɑːrtʃˈdiːkən/

archdeacon

大执事
Meaning
A senior clergyman in the Christian Church ranking below a bishop.
Example
The archdeacon assisted the bishop in administrative duties.
大执事协助主教完成行政事务。
C2 verb /ˌæd ˈlɪb/

ad-lib

即兴
Meaning
to speak or perform without preparation; to improvise
Example
The comedian ad-libbed a joke when the microphone failed.
喜剧演员在麦克风故障时即兴编了一个笑话。
C2 verb /əˈbeɪs/

abase

贬低
Meaning
to belittle or degrade someone
Example
He refused to abase himself before the king.
他拒绝在国王面前贬低自己。
C2 noun /əˈdɛpt.nəs/

adeptness

熟练和技巧
Meaning
Skill and dexterity in a task.
Example
His adeptness in negotiations helped close the deal successfully.
他在谈判中的熟练帮助成功地完成了交易。
C2 noun ˌæɡ.roʊˈfɔːr.ɪ.stri

agroforestry

农业林业
Meaning
A land use management system in which trees or shrubs are grown around or among crops or pastureland.
Example
Agroforestry improves soil quality and crop yield.
农业林业改善了土壤质量和作物产量。
C2 noun ˌæɡ.roʊˈiː.koʊˌsɪs.təm

agroecosystem

农业生态系统
Meaning
An ecological system centered on agricultural activities and processes.
Example
A healthy agroecosystem improves soil fertility.
健康的农业生态系统提高土壤肥力。
C2 noun /əˈzeɪ.li.ə/

azalea

杜鹃花
Meaning
a flowering shrub with brightly colored blooms, often grown ornamentally
Example
The garden was full of blooming azaleas in spring.
花园里春天盛开着杜鹃花。
C2 adjective /ˈæb.ə.rənt/

aberrant

异常
Meaning
deviating from what is normal or expected; abnormal
Example
His aberrant behavior shocked everyone at the meeting.
他的异常行为让会议上的每个人都感到震惊。
C2 adjective /əˈstrɪndʒənt/

astringent

严厉的
Meaning
sharp or severe in manner or style; also describes a substance that contracts skin or body tissues
Example
Her astringent tone silenced the noisy class.
她那严厉的语气让嘈杂的课堂安静下来。
C2 noun /ˈæntɪˌtʃeɪmbər/

antechamber

前厅
Meaning
a small room serving as an entry to a larger one
Example
The guests waited in the antechamber before being admitted to the hall.
客人们在进入大厅之前，先在前厅等待。
C2 adjective /əˈfɔːrsed/

Aforesaid

之前提到的
Meaning
mentioned before; previously stated
Example
The aforesaid conditions must be met before approval.
之前提到的条件必须在批准前完成。
C2 adjective /ˈeɪ.li.ə.nə.bəl/

alienable

可转让的
Meaning
Able to be transferred or surrendered, usually referring to rights or property.
Example
Property rights are alienable and can be sold or transferred.
财产权是可以转让的，可以出售或转让。
C2 adjective /ˈæməˌtɔːri/

amatory

与爱相关的
Meaning
Relating to or expressing sexual love.
Example
The poet’s verses were filled with amatory themes.
诗人的诗句充满了爱情主题。
C2 noun /ˌænɪˈmɒmɪtər/

anemometer

风速计
Meaning
An instrument used to measure the speed and direction of wind.
Example
The scientist used an anemometer to record the wind speed during the storm.
科学家使用风速计记录风速，在风暴期间。
C2 adjective/adverb /ˌæ.prəˈpoʊ/

apropos

恰当
Meaning
Appropriate to the situation; relevant. As an adverb, it means 'with reference to' or 'regarding'.
Example
His comments were not apropos of the discussion.
他的评论与讨论无关。
C2 noun /ˈæntiruːm/

anteroom

前厅
Meaning
A small room leading to a main one, often used as a waiting area.
Example
The guests waited in the anteroom before being called inside.
客人在被叫进去之前在前厅等待。
C2 verb /əˈbʌt/

abut

相邻
Meaning
to be next to or share a border with
Example
The park abuts the river on the north side.
公园在北边与河流接壤。
C2 noun /əˈsɛt.ɪˌsɪz.əm/

asceticism

禁欲主义, 自律
Meaning
The practice of severe self-discipline and abstaining from indulgence, typically for religious or spiritual reasons.
Example
Asceticism has been a part of many religious traditions throughout history.
禁欲主义是许多宗教传统的一部分，贯穿历史。
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 noun /ˌæv.oʊˈkeɪ.ʃən/

avocation

副业
Meaning
a hobby or minor occupation pursued in addition to one's main work
Example
Painting is his avocation after office hours.
绘画是他下班后的副业。
C2 noun /əˈfeɪ.ʒə/

aphasia

Meaning
a medical condition that causes loss of ability to speak or understand language
Example
After the stroke, she was diagnosed with aphasia.
C2 noun /əˈɡrɒnəmɪst/

agronomist

农业学家
Meaning
A scientist who studies soil management and crop production.
Example
The agronomist suggested new methods to improve rice yields.
农业学家建议了一些新的方法，以提高水稻产量。
C2 adjective /æmˈbroʊʒiəl/

ambrosial

神仙的
Meaning
Exceptionally pleasing to taste or smell; divine.
Example
The aroma of freshly baked bread was simply ambrosial.
刚烤好的面包香气简直是神仙的。
C2 noun /ˌæprəˈbeɪʃən/

approbation

批准 / 赞扬
Meaning
approval or praise
Example
The plan won the approbation of the board members.
这个计划赢得了董事会成员的批准。
C2 noun ˈɔː.tɑː.ki

autarky

自给自足, 经济独立
Meaning
Economic independence or self-sufficiency; a policy of establishing a self-sufficient national economy.
Example
Some nations aim for autarky to reduce reliance on imports.
一些国家通过减少对进口的依赖，追求自给自足。
C2 adverb /əˈsɪdʒuəsli/

assiduously

努力地
Meaning
with great care and persistence
Example
He worked assiduously to complete the project before the deadline.
他努力工作，以便在截止日期之前完成项目。
C2 verb /əˈdʌltəreɪt/

adulterate

掺假
Meaning
to make something poorer in quality by adding another substance, usually of lower quality
Example
The company was fined for adulterating its products with cheap chemicals.
该公司因将其产品篡改成便宜的化学品而被罚款。
C2 adjective /ˌænθrəpəˈmɔːrfɪk/

anthropomorphic

拟人化的
Meaning
attributing human characteristics to non-human things, like animals or objects
Example
The cartoon shows an anthropomorphic cat walking on two legs.
动画片展示了一只拟人化的猫，走在两条腿上。
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 adjective /ˌækrəˈmætɪk/

achromatic

无色的
Meaning
without color; free from color
Example
The designer chose an achromatic palette of black, white, and gray.
设计师选择了黑色、白色和灰色的无色调色板。
C2 verb /əˈɡriːv/

aggrieve

使愤怒
Meaning
to cause distress or make someone feel resentful
Example
She felt aggrieved by the unfair decision.
她因不公平的决定而感到不满。
C2 noun /əˈspær.ə.ɡəs biːn/

Asparagus bean

芦笋豆
Meaning
a long, thin green vegetable pod that grows on vines; also known as yard-long bean
Example
The asparagus bean grows up to three feet long and is commonly used in Asian cooking.
芦笋豆可以长到三英尺长，并且常用于亚洲烹饪。
C2 noun /əˌɡlɒməˈreɪʃən/

agglomeration

聚集
Meaning
A mass or collection of things, sometimes clustered together.
Example
The city is an agglomeration of diverse cultures and communities.
这座城市是各种文化和社区的聚集地。
C2 noun /ˌæs.əˈfet.ɪ.də/

Asafoetida

阿萨福提达
Meaning
a pungent spice derived from the resin of a plant, commonly used in Indian cooking
Example
A pinch of asafoetida adds a distinctive flavor to the lentil curry.
一撮阿萨福提达为扁豆咖喱增添了独特的风味。
C2 noun /ˌænəlˈdʒiːziə/

analgesia

镇痛
Meaning
The inability to feel pain while still conscious.
Example
The doctor induced analgesia before performing the procedure.
医生在进行手术前诱导了镇痛。
C2 noun /əˈrɪə/

arrear

欠款
Meaning
A debt or payment that is overdue and unpaid.
Example
He was sued for an arrear of rent.
他因未付租金的欠款被起诉。
C2 verb /ˌænɪmədˈvɜːt/

animadvert

批评
Meaning
To comment critically or unfavorably.
Example
The teacher animadverted on the student's careless mistakes.
老师批评了学生的粗心错误。
C2 noun /ˌær.əˈbɪl.ɪ.ti/

arability

可耕性
Meaning
The quality of land being suitable for growing crops.
Example
The arability of land depends on soil quality and water availability.
土地的可耕性取决于土壤质量和水源的可用性。
C2 verb /ˈæbrəɡeɪt/

abrogate

废除
Meaning
To formally repeal, cancel, or abolish a law, agreement, or custom.
Example
The government decided to abrogate the outdated treaty.
政府决定废除过时的条约。
C2 verb /ˈæmərˌtaɪz/

amortize

摊销
Meaning
To gradually reduce or pay off a debt with regular payments.
Example
They plan to amortize the mortgage over 20 years.
他们计划在20年内摊销抵押贷款。
C2 noun /ˌæk.wiˈes.əns/

acquiescence

默许
Meaning
The reluctant acceptance of something without protest.
Example
His silent acquiescence to unfair rules was surprising.
他对不公正规则的默许让人吃惊。
C2 noun /ˌær.əˈbesk/

arabesque

装饰性设计
Meaning
a complex, ornate design featuring intertwined flowing lines, often used in architecture or ballet poses
Example
The ceiling was decorated with delicate arabesque patterns.
天花板上装饰着精美的阿拉贝斯克图案。
C2 verb /əˈkriːt/

accrete

逐渐增长
Meaning
to grow or increase gradually by accumulation or addition
Example
Dust particles accrete over time to form larger celestial bodies.
尘埃颗粒随着时间积累，形成更大的天体。
C2 adjective /ˌæntɪˈθɛtɪkəl/

antithetical

对立的
Meaning
Directly opposed or contrasted; mutually incompatible.
Example
His views were antithetical to the values of the organization.
他的观点与组织的价值观完全对立。
C2 verb /ænˈtɪpəθaɪz/

antipathize

反感
Meaning
to feel or express a strong dislike or aversion toward something or someone
Example
He seemed to antipathize with the new management's approach.
他似乎对新管理方法持反感态度。
C2 noun /ænˈtɪstrəfi/

antistrophe

反歌式 (一种修辞手法)
Meaning
A rhetorical device in which a word or phrase is repeated at the end of successive clauses; in Greek choral poetry, the part of the ode sung by the chorus in return movement.
Example
The poet used antistrophe to emphasize the repeated phrase.
诗人使用反歌式来强调重复的短语。
C2 noun əˈlæk.rə.t̬i

alacrity

快速和愉快的准备
Meaning
Brisk and cheerful readiness.
Example
He accepted the challenge with alacrity.
他以 alacrity 接受了挑战。
C2 adjective /æbˈstruːs/

abstruse

深奥
Meaning
Difficult to understand; obscure.
Example
The abstruse nature of the philosophical debate left many confused.
哲学辩论的深奥本质让许多人感到困惑。
C2 verb /əˈniːl/

anneal

通过加热使硬化
Meaning
To heat and cool metal or glass to make it stronger or less brittle.
Example
The blacksmith annealed the steel to improve its durability.
铁匠为了提高钢的耐久性进行了退火。
C2 adjective /ˈæmbjələˌtɔːri/

ambulatory

门诊病人
Meaning
Relating to or able to walk; relating to outpatient medical care.
Example
The patient is ambulatory and does not require bed rest.
病人是门诊患者，不需要卧床休息。
C2 adjective /əˈɡeɪp/ or /əˈɡɑːp/

agape

目瞪口呆
Meaning
With the mouth wide open in surprise or wonder.
Example
She stood agape at the breathtaking view.
她站在那里，惊讶地看着那令人叹为观止的景象。
C2 noun /ˌɔːskʌlˈteɪʃən/

auscultation

听诊
Meaning
The act of listening to internal sounds of the body, typically using a stethoscope.
Example
The doctor performed auscultation to check the patient’s lungs.
医生进行了听诊，以检查病人的肺部。
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 noun /əˈdʌltərənt/

adulterant

掺假物质
Meaning
a substance added to something else, often food or drink, to reduce its quality or strength
Example
The laboratory found an adulterant in the milk samples.
实验室在牛奶样本中发现了掺假物质。
C2 adjective /əˈpɜːrtənənt/

appurtenant

附属
Meaning
Belonging to or associated with something, often used in legal/property contexts.
Example
The right of way is appurtenant to the landowner’s property.
通行权属于土地所有者的财产。
C2 adjective /əˈkɜːrsɪd/

accursed

诅咒的
Meaning
Doomed, detestable, or under a curse.
Example
The villagers avoided the accursed house on the hill.
村民们避开了山上的诅咒房子。
C2 verb /əˈdʒʊər/

adjure

命令
Meaning
to urge or command someone solemnly, often under oath or a strong sense of duty
Example
The witness was adjured to tell the truth in court.
证人被要求在法庭上讲真话。
C2 noun /ˈɔːldərmənʃɪp/

aldermanship

市议员职位
Meaning
The office, position, or dignity of an alderman.
Example
He was honored with aldermanship after years of service.
他在多年服务后，因市议员职位而获奖。
C2 noun /ˈæntiˌkraɪst/

antichrist

敌基督
Meaning
A person regarded as the supreme opponent of Christ, often seen as a figure of ultimate evil.
Example
Some people fear the rise of an Antichrist in the future.
有些人害怕未来出现敌基督。
C2 noun /ˈæpəfθɛm/

apophthegm

简短、机智且富有教育意义的谚语或格言
Meaning
A short, pithy, and instructive saying or maxim.
Example
She always had a witty apophthegm to share at meetings.
她总是有一个机智的阿波夫塞姆，在会议上分享。
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 adjective /əˈɡɒɡ/

agog

Meaning
Highly excited by eagerness, curiosity, or anticipation.
Example
The children were agog with excitement as they waited for the magician to appear.
C2 noun /ˈænɪməs/

animus

敌意 / 目的
Meaning
A strong feeling of hostility; motivation or purpose behind an action.
Example
His speech was driven by animus against the policy.
他的演讲是由对政策的敌意驱动的。
C2 noun /əˈvɪdəti/

avidity

热情
Meaning
extreme eagerness or enthusiasm
Example
He accepted the offer with avidity.
他带着热情接受了这个提议。
C2 verb /əˈlɪtəreɪt/

alliterate

使用押头韵
Meaning
to repeat the same consonant sound at the beginning of words in a phrase or sentence
Example
The poet often alliterates words to create rhythm.
诗人经常押头韵来创造节奏。
C2 noun, adjective /ˌæntiˌspæzˈmɒdɪk/

antispasmodic

抗痉挛药
Meaning
A drug or agent that relieves or prevents muscle spasms.
Example
The doctor prescribed an antispasmodic to ease the pain.
医生开了一种抗痉挛药来缓解疼痛。
C2 noun /ˈɛərəˌnɔːt/

aeronaut

气球飞行员
Meaning
A person who travels in an airship, balloon, or other aircraft.
Example
The aeronaut skillfully guided the hot-air balloon across the valley.
气球飞行员熟练地引导热气球穿过山谷。
C2 noun /əˌnʌn.siˈeɪ.ʃən/

annunciation

宣布，好消息
Meaning
The announcement of something; in Christianity, the announcement by the angel Gabriel to Mary that she would conceive Jesus.
Example
The church celebrated the Feast of the Annunciation with a special service.
教堂通过特别的服务庆祝了报喜节。
C2 noun /ænˈtɪfəni/

antiphony

对唱
Meaning
a form of music in which two or more groups or choirs sing alternately in response to each other
Example
The cathedral's architecture was designed to enhance the effect of antiphony.
大教堂的建筑旨在增强对唱的效果。
C2 noun /ˈætəmaɪzər/

atomizer

喷雾器
Meaning
A device that sprays liquid into a fine mist.
Example
She used an atomizer to apply the perfume evenly.
她使用喷雾器均匀地涂抹香水。
C2 noun /əkˈsɛʃən/

accession

登基 / 接受协议
Meaning
the attainment of a position of rank or power, especially a monarch or president; the formal acceptance of an agreement or treaty
Example
The king's accession to the throne was celebrated with great ceremony.
国王登基的仪式盛大举行。
C2 adverb /əˈbæk/

Aback

吃惊的
Meaning
by surprise; unexpectedly
Example
I was taken aback by his sudden announcement.
我被他突然的宣布吓到了。
C2 noun /ˈæktʃuˌɛri/

actuary

精算师
Meaning
A professional who analyzes financial risk using mathematics, statistics, and financial theory, especially in insurance and pensions.
Example
The actuary calculated the risk before finalizing the insurance policy.
精算师在确定保险政策之前计算了风险。
C2 noun /əˈplɒm/

aplomb

Meaning
Complete and confident self-assurance or poise.
Example
She handled the difficult questions with aplomb.
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 verb /əˈreɪn/

arraign

起诉
Meaning
to formally accuse someone in a court of law and ask them to respond to the charges
Example
The suspect was arraigned before the judge this morning.
嫌疑人在今天早晨被指控出庭。
C2 adjective /ˈæpəzɪt/

apposite

恰当
Meaning
highly appropriate or relevant to what is being discussed
Example
Her remark was particularly apposite to the situation.
她的评论对于这个情况特别恰当。
C2 adjective /ˌævəˈrɪʃəs/

avaricious

贪婪的
Meaning
having or showing extreme greed for wealth or material gain
Example
The avaricious landlord increased the rent unfairly.
贪婪的房东不公正地提高了租金。
C2 verb /əbˈhɔːr/

abhor

厌恶
Meaning
to regard with disgust and hatred
Example
She abhors cruelty to animals.
她厌恶对动物的残忍。
C2 adjective /ɑːrˈθʊr.i.ən/

arthurian

与亚瑟王相关的
Meaning
Relating to the legendary King Arthur and the stories surrounding him.
Example
The novel is set in an Arthurian world of knights and castles.
这部小说设定在一个亚瑟王的世界里，充满了骑士和城堡。
C2 verb /əˈkɒst/

accost

突然接近并与某人交谈
Meaning
to approach and speak to someone boldly or aggressively
Example
The reporter was accosted by protesters outside the courthouse.
记者在法院外被抗议者突然围住。
C2 noun /ˈæstər/

Aster

紫菀花
Meaning
a flowering plant with daisy-like flowers that typically bloom in fall
Example
The purple asters bloomed beautifully in the autumn garden.
紫色的紫菀花在秋天的花园里美丽地盛开。
C2 verb /əkˈsiːd/

accede

同意
Meaning
to agree to a request, proposal, or demand; to assume an office or position
Example
The government finally acceded to the demands of the protesters.
政府最终同意了抗议者的要求。
C2 verb /ˈɔːltərˌkeɪt/

altercate

争论
Meaning
to argue or dispute angrily or noisily
Example
The neighbors began to altercate over the boundary wall.
邻居们开始争论边界墙。
C2 verb /ˌæntɪˈsiːd/

antecede

先来
Meaning
to come before in time or order
Example
A short introduction usually antecedes the main text.
简短的介绍通常先于正文。
C2 adjective /ˈæsɪnaɪn/

asinine

愚蠢的
Meaning
Extremely foolish or stupid.
Example
It was an asinine idea to drive into the storm without checking the weather.
在没有检查天气的情况下开车进入暴风雨是一个愚蠢的主意。
C2 noun /ˈæmpərˌsænd/

ampersand

安珀桑德
Meaning
The symbol '&' used to represent the word 'and'.
Example
Use an ampersand instead of writing the word 'and' in the company name.
在公司名称中使用安珀桑德代替'和'这个词。
C2 adjective ˌeə.rəʊˈstæt.ɪk

aerostatic

气动静态的
Meaning
Relating to or involving gases (especially air) in equilibrium and the equilibrium of balloons or aircraft under the influence of such gases.
Example
Aerostatic designs ensure stability at high altitudes.
气动静态设计确保在高海拔地区的稳定性。
C2 noun /ˌæntɪˈtɒksɪn/

antitoxin

抗毒素
Meaning
A substance that neutralizes a specific toxin in the body.
Example
The doctor administered an antitoxin to counter the snake venom.
医生注射了抗毒素来中和蛇毒。
C2 noun, verb /ˈæseɪ/

assay

分析
Meaning
To test or analyze the quality, purity, or content of a substance; the act of such testing.
Example
The scientists assayed the mineral sample for gold content.
科学家们对矿石样本进行了金含量测试。
C2 noun /əˈsɜːrbəti/

acerbity

尖刻
Meaning
bitterness or sharpness of tone, manner, or taste
Example
The acerbity of his remarks left everyone silent.
他评论的尖刻让所有人都沉默了。
C2 adverb /əˈmʌk/

amuck

疯狂地
Meaning
in a frenzied, uncontrolled, or chaotic manner
Example
The bull ran amuck through the village.
公牛在村子里疯狂地奔跑。
C2 noun əˌklaɪ.mə.tɪˈzeɪ.ʃən

acclimatization

适应
Meaning
The process of adapting to a new environment or condition.
Example
The hikers needed time for acclimatization to high altitudes.
徒步旅行者需要时间来适应高海拔。
C2 noun /ˈæn.oʊd/

anode

正极
Meaning
The positive electrode in a device such as a battery, where current flows into a polarized electrical device.
Example
The anode of the battery was corroded after long use.
电池的正极在长时间使用后被腐蚀了。
C2 noun /ˈiːdʒɪs/

aegis

保护
Meaning
The protection, backing, or support of a particular person or organization.
Example
The project was carried out under the aegis of the United Nations.
该项目在联合国的庇护下进行。
C2 noun /ˈɑːrɡoʊ/

argot

特定群体的行话
Meaning
the specialized vocabulary or jargon of a particular group, especially one with a common interest or occupation
Example
The thieves communicated in an argot that outsiders could not understand.
小偷们用一种外人无法理解的阿尔戈语言交流。
C2 verb /ˈæpɪtaɪz/

appetize

刺激食欲
Meaning
to stimulate the appetite; to make someone eager or interested
Example
The aroma of fresh bread will appetize the guests before dinner.
新鲜面包的香味会刺激客人的食欲。
C2 noun /ˈɑːrbər/

arbor

由树木或攀缘植物组成的阴凉花园庇护所
Meaning
a shady garden shelter formed by trees, climbing plants, or latticework
Example
They rested under the arbor covered with roses.
他们在被玫瑰覆盖的阿尔博尔下休息。
C2 noun əˌmæl.ɡəˈmeɪ.ʃən

amalgamation

融合, 合并, 综合
Meaning
The action, process, or result of combining or uniting.
Example
The amalgamation of AI and big data is transforming industries.
人工智能和大数据的融合正在改变行业。
C2 verb əˈtɛn.ju.eɪt

attenuate

减轻
Meaning
To reduce the force, effect, or value of something; to make weak or thin.
Example
The medicine helps attenuate the pain.
这种药有助于缓解疼痛。
C2 noun /ˌæpəˈzɪʃən/

apposition

同位语 (并列语法)
Meaning
a grammatical construction in which two elements are placed side by side, with one explaining the other
Example
In the phrase 'my friend John,' the word 'John' is in apposition to 'my friend.'
在短语'我的朋友约翰'中，'约翰'这个词与'我的朋友'同位。
C2 noun /ˈeɪ.viˌɛr.i/

aviary

鸟舍
Meaning
a large enclosure for keeping birds
Example
The zoo built a new aviary for exotic parrots.
动物园为外来鹦鹉建了一个新的鸟舍。
C2 noun ˌæm.ɔː.tɪˈzeɪ.ʃən

amortization

摊销
Meaning
The process of paying off debt with regular payments over time.
Example
The amortization schedule showed a 10-year repayment plan.
摊销计划显示了一个10年的还款计划。
C2 adjective /ɑːrˈbɔːr.i.əl/

arboreal

与树相关
Meaning
Relating to trees or living in trees; tree-dwelling.
Example
Monkeys are arboreal animals that spend most of their time in trees.
猴子是树栖动物，它们大部分时间都待在树上。
C2 noun /ˌædʒʊˈreɪʃən/

adjuration

郑重请求
Meaning
a solemn urging or appeal
Example
The priest made an adjuration for peace and unity.
牧师为和平与团结做出了郑重请求。
C2 noun /ˈæsənəns/

assonance

类韵
Meaning
the repetition of vowel sounds in nearby words in poetry or prose
Example
The poet used assonance to create a musical effect in his verse.
诗人使用类韵来创造他诗句中的音乐效果。
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 /ˈɔːtɑːrki/

autarchy

自给自足
Meaning
A system of self-sufficiency where a state or community is economically independent.
Example
The nation attempted autarchy to reduce reliance on imports.
这个国家试图实现自给自足，以减少对进口的依赖。