adroit
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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 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The government decided to abrogate the outdated treaty.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 noun əˈkjuː.ə.ti

acuity

敏锐度
Meaning
Sharpness or keenness of thought, vision, or hearing.
Example
His intellectual acuity made him a brilliant scientist.
他的智力敏锐度使他成为一位杰出的科学家。
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 adjective /əˈθɜːrst/

athirst

渴望, 渴求
Meaning
Very eager or desirous for something.
Example
The explorer was athirst for adventure.
探险家渴望冒险。
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 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 verb /ˈædjʊˌleɪt/

adulate

过度奉承
Meaning
to praise or flatter excessively
Example
The fans adulated the actor after his performance.
粉丝们在演员的表演后赞美了他。
C2 noun /ˌeɪd də ˈkæmp/

aide-de-camp

军官，担任高级军官的机密助手
Meaning
A military officer acting as a confidential assistant to a senior officer.
Example
The general was accompanied by his aide-de-camp during the ceremony.
在仪式期间，军官与他的随行军官共同出席。
C2 verb /ˈæd.ʌm.breɪt/

adumbrate

预示
Meaning
to foreshadow or suggest something in an unclear or indirect way
Example
The report adumbrates future economic challenges.
报告预示着未来的经济挑战。
C2 noun /ˈɛəri/

aerie

鹰巢
Meaning
A large nest of a bird of prey, especially an eagle, typically built high in a tree or on a cliff.
Example
The eagle built its aerie on the high cliff.
鹰在高悬崖上筑巢
C2 adjective /ɔːˈrɔːrəl/

auroral

与极光相关
Meaning
Relating to or resembling the aurora, especially the northern lights.
Example
The scientists observed auroral activity in the night sky.
科学家们在夜空中观察到了欧若拉活动。
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 /ˌæn.θrə.pəˈdʒen.ɪk/

anthropogenic

人类起源的
Meaning
Originating in human activity; caused by humans.
Example
Climate change is largely due to anthropogenic activities.
气候变化在很大程度上是由人类起源的活动引起的。
C2 noun /ˈæntɪkwɛri/

antiquary

古董商
Meaning
A person who studies, collects, or deals in antiques or ancient objects.
Example
The antiquary spent years collecting rare manuscripts from the medieval period.
这位古物商花了多年时间收集来自中世纪的稀有手稿。
C2 adjective /ˈæsənənt/

assonant

押韵
Meaning
Having or characterized by assonance; repeating similar vowel sounds.
Example
The poem is filled with assonant words that create a musical rhythm.
这首诗充满了押韵的词语，创造了音乐般的节奏。
C2 noun /ˈɑːm.lət/

Armlet

臂环
Meaning
a band worn around the upper arm as an ornament
Example
The traditional dancer wore golden armlets that gleamed in the spotlight.
传统舞者佩戴着金色的臂环，在聚光灯下闪闪发光。
C2 adjective /əˈsɛt.ɪk/

ascetic

苦行
Meaning
Practicing strict self-denial and abstaining from worldly pleasures, often for religious reasons.
Example
He lived an ascetic life in the mountains, far from worldly comforts.
他在山区过着苦行生活，远离世俗的安逸。
C2 noun /ˈɛərəˌstæt/

aerostat

气球艇
Meaning
A lighter-than-air craft, such as a balloon, that is lifted by gas.
Example
The military used an aerostat for surveillance over the border.
军方使用了气球艇进行边境监视。
C2 adjective /ˌæntɪˈmʌndeɪn/

antemundane

世界创造之前
Meaning
Existing or occurring before the creation of the world.
Example
Some myths speak of an antemundane chaos before order was established.
一些神话讲述了在秩序建立之前的安特蒙丹混乱。
C2 verb /əˈbɛt/

abet

Meaning
to encourage or assist someone to commit a crime or wrongdoing
Example
He was accused of abetting the criminals in their escape.
C2 adjective /əˈkwɪzətɪv/

acquisitive

Meaning
excessively interested in acquiring money or material things
Example
The acquisitive businessman bought every piece of land he could find.
C2 verb /ˈæmbl/

amble

慢慢走
Meaning
To walk at a slow, relaxed pace.
Example
They amble through the park on Sunday mornings.
他们在星期天早上悠闲地走过公园。
C2 noun /ˌæbnɪˈɡeɪʃən/

abnegation

自我否定
Meaning
the act of renouncing or rejecting something, especially self-denial
Example
The monk’s life was one of complete abnegation of worldly pleasures.
僧侣的生活是对世俗快乐的完全自我否定。
C2 adjective /ˈæfəbəl/

affable

和蔼可亲
Meaning
friendly, easy to talk to, and pleasant in manner
Example
He is such an affable host that everyone feels comfortable at his parties.
他是一个和蔼可亲的主人，每个人在他的聚会上都感到很舒适。
C2 noun /ˌæɡ.rəˈdeɪ.ʃən/

aggradation

通过沉积物沉积形成土地的过程
Meaning
The process of land being built up by sediment deposition.
Example
Aggradation helps in the natural expansion of riverbanks.
加格雷德森有助于河岸自然扩展。
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 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 /ˈæl.kə.laɪ ækt/

Alkali Act

碱性法案
Meaning
A British law passed in 1863 to regulate the emission of hydrochloric acid gas from alkali works, representing one of the first pieces of environmental legislation.
Example
The Alkali Act of 1863 was one of the first environmental laws.
1863年的碱性法案是最早的环境法律之一。
C2 adverb /əˈsʌndər/

asunder

分成碎片
Meaning
into separate parts; apart
Example
The ancient empire was torn asunder by war.
古老的帝国在战争中被撕裂成碎片。
C2 noun /ˌækwəˈpɒnɪks/

aquaponics

水培水产
Meaning
A system of aquaculture in which the waste produced by farmed fish or other aquatic animals supplies nutrients for plants grown hydroponically.
Example
Aquaponics efficiently utilizes water by integrating fish and plant farming.
水培水产通过将鱼类和植物养殖结合有效利用水资源。
C2 adverb /əˈskæns/

askance

怀疑地
Meaning
With suspicion, mistrust, or disapproval.
Example
She looked askance at his unusual proposal.
她怀疑地看着他的异常提案。
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 /əˈɡrɛs/

aggress

攻击
Meaning
to initiate an attack or show hostile behavior
Example
The army chose not to aggress without provocation.
军队决定不在没有挑衅的情况下攻击。
C2 verb /əˈmælɡəmeɪt/

amalgamate

合并
Meaning
to combine or unite to form one organization or structure; to merge
Example
The two companies decided to amalgamate their operations.
这两家公司决定合并他们的运营。
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 /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 /ˌæŋɡləˈfoʊbiə/

anglophobia

盎格鲁恐惧症
Meaning
Dislike or fear of England, English people, or English culture.
Example
The politician was accused of promoting Anglophobia in his speeches.
这位政治家被指控在他的演讲中宣传盎格鲁恐惧症。
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 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 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 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 /ˈærəˌɡeɪt/

arrogate

不正当地索取
Meaning
To claim or take something without justification.
Example
The dictator arrogated all powers to himself.
独裁者不正当地把所有权力据为己有。
C2 noun /ˈætəvɪzəm/

atavism

返祖现象
Meaning
The recurrence of traits or characteristics from a remote ancestor.
Example
The scientist noted atavism in the child’s physical features.
科学家在孩子的生理特征中观察到返祖现象。
C2 verb /əˈkuːtər/

accouter

装备
Meaning
to equip or outfit, typically with military or ceremonial attire
Example
The soldiers were accoutered in full battle gear.
士兵们穿戴着全套战斗装备。
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 adjective /ˌæk.si.əˈmæt.ɪk/

axiomatic

自明的，显然无需证明的真理
Meaning
Self-evident, obviously true without need for proof
Example
It is axiomatic that hard work leads to success.
努力工作是自明的，成功将随之而来。
C2 noun /əˈnjuː.ɪ.ti/

annuity

年金
Meaning
a fixed sum of money paid to someone each year, typically for the rest of their life
Example
She receives an annuity from her late husband's insurance policy.
她从她已故丈夫的保险政策中获得年金。
C2 noun /əˈkjuːtnəs/

acuteness

敏锐性；严重程度
Meaning
sharpness of mind or senses; severity or intensity of a condition
Example
Her acuteness allowed her to notice details others missed.
她的敏锐性让她注意到别人忽略的细节。
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 adjective /ˈæstrəl/

astral

Meaning
Relating to the stars or to spiritual, non-physical realms.
Example
Some believe in astral projection, the ability to leave the body and travel spiritually.
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 /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 verb /əˈdʒʌdʒ/

adjudge

裁决
Meaning
to consider or declare officially in a legal or formal manner
Example
He was adjudged guilty by the court.
他被法院判定有罪。
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 adjective /ˌæntɪdəˈluːviən/

antediluvian

极为古老
Meaning
extremely old-fashioned; belonging to the time before the biblical flood
Example
His views on women are positively antediluvian.
他对女性的看法是完全过时的。
C2 noun /əˈdɛndəm/

addendum

附录
Meaning
an additional item or piece of information added at the end of a document or book
Example
The report included an addendum with updated statistics.
报告中包含了带有更新统计数据的附录。
C2 adjective, noun /ˈænθrəpɔɪd/

anthropoid

人猿类
Meaning
Resembling a human being in form; a primate such as apes and monkeys.
Example
The gorilla is considered an anthropoid ape.
大猩猩被认为是人猿类的猩猩。
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 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 verb /əbˈskɒnd/

abscond

逃跑
Meaning
to leave secretly and quickly, often to avoid arrest or punishment
Example
The thief tried to abscond with the stolen jewelry.
小偷试图带着被盗的珠宝逃跑。
C2 noun /əˌpɒθiˈoʊsɪs/

apotheosis

神化, 顶峰
Meaning
The highest point of development; the perfect example of something; the elevation of someone to divine status.
Example
Many see the Renaissance as the apotheosis of art and culture in Europe.
许多人认为文艺复兴是欧洲艺术和文化的巅峰。
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 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 adjective /ˌæl.ɪˈmen.tər.i/

alimentary

与消化相关
Meaning
relating to nourishment or the organs of digestion
Example
The doctor explained the role of the alimentary canal in digestion.
医生解释了消化道在消化过程中的作用。
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 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 /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 verb /ˈæd.l̩/

addle

迷惑
Meaning
To confuse or muddle someone’s mind.
Example
The complicated instructions only served to addle him.
复杂的指令只会让他感到困惑。
C2 noun /ˈæn.dʒi.əʊ.plæs.ti/

angioplasty

一种医疗程序，用于打开阻塞或狭窄的血管，这些血管向心脏输送血液。
Meaning
A medical procedure to open blocked or narrowed blood vessels that supply blood to the heart.
Example
Angioplasty is now safer with robotic assistance.
现在，通过机器人辅助，血管成形术更加安全。
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 /ˈænɪməlˌkjuːl/

animalcule

微生物
Meaning
A microscopic animal, especially a protozoan or other minute organism.
Example
The scientist observed an animalcule moving under the microscope.
科学家在显微镜下观察到一个微生物在移动。
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 adjective /ˈærənt/

arrant

完全的, 绝对的
Meaning
complete or utter (used negatively, e.g., 'arrant nonsense')
Example
His excuse was arrant nonsense.
他的借口是完全的胡说八道。
C2 noun /ˈæntɪk/

antic

滑稽
Meaning
a playful, funny, or silly act or gesture
Example
The children laughed at the clown’s antics.
孩子们笑着看小丑的滑稽动作。
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 noun əˈdrɔɪt.nəs

adroitness

灵巧
Meaning
Cleverness or skill, especially in using the hands or mind; skillful dexterity.
Example
His adroitness in negotiations secured the deal.
他在谈判中的灵巧确保了交易。
C2 noun /ˈɑːr.bɪ.trɑːʒ/

arbitrage

套利
Meaning
The simultaneous buying and selling of securities in different markets to take advantage of differing prices.
Example
Investors use arbitrage to make profits in global markets.
投资者利用套利在全球市场中获取利润。
C2 noun /ˈɑːrtləsnəs/

artlessness

简朴, 自然
Meaning
The quality of being natural and simple without deceit or pretension.
Example
Her artlessness made her beloved by all.
她的artlessness使她受到所有人的喜爱。
C2 adjective /eɪˈsɛfələs/

acephalous

Meaning
having no leader or head; headless
Example
The acephalous group soon fell into disorganization.
C2 noun /ˈænti/

ante

Meaning
a stake put up by a player in poker or similar games before receiving cards; also used figuratively to mean an initial investment or contribution
Example
Each player placed an ante before the game began.
C2 noun /ˈɑːrtɪfɪs/

artifice

诡计
Meaning
clever or cunning devices or tricks used to deceive others
Example
The politician's charm was nothing but artifice.
那位政治家的魅力不过是个诡计。
C2 noun /ˌæbsəˈluːʃən/

absolution

宽恕
Meaning
formal release from guilt, obligation, or punishment
Example
The priest granted him absolution for his sins.
牧师为他的罪行给予了宽恕。
C2 adjective /əˌnækrəˈnɪstɪk/

anachronistic

时代错误的
Meaning
belonging to a period other than that being portrayed; old-fashioned or outdated
Example
His views on gender roles are considered anachronistic.
他关于性别角色的看法被认为是时代错误的。
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 adverb /əˈmʌk/

amok

失控
Meaning
Behaving uncontrollably and disruptively.
Example
The angry mob ran amok after the verdict was announced.
愤怒的人群在裁决宣布后失控地奔跑。
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 adjective /ˈæbdʒɛkt/

abject

可鄙
Meaning
extremely bad, unpleasant, and degrading
Example
They lived in abject poverty.
他们生活在可鄙的贫困中。
C2 adjective /ˈeɪkwiəs/

aqueous

水合的
Meaning
related to or containing water; watery
Example
The solution was in an aqueous form.
溶液是水合的。
C2 noun /əˈpɒstəsi/

apostasy

背教
Meaning
The abandonment or renunciation of a religious or political belief.
Example
His public apostasy shocked his followers.
他的公开背教震惊了他的追随者。
C2 noun /ˈæpəˌsteɪt/

apostate

叛教者
Meaning
A person who renounces a religious or political belief or principle.
Example
He was labeled an apostate after abandoning the faith of his community.
他在放弃自己社群的信仰后，被贴上了叛教者的标签。
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 adjective /ɔːˈrɪfərəs/

auriferous

含金的
Meaning
Containing or producing gold.
Example
The miners discovered an auriferous vein in the mountains.
矿工在山中发现了一个含金的矿脉。
C2 noun /ˈæl.mɪ.rə/

Almirah

衣柜
Meaning
a large cupboard or wardrobe used for storing clothes and other items
Example
I keep all my clothes in the wooden almirah.
我把所有的衣服都放在木制衣橱里。
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 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 /ˈɑːrkeɪndʒəl/

archangel

Meaning
A high-ranking angel, often considered a chief messenger or leader among angels.
Example
Michael is often depicted as the most powerful archangel.
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 adjective /ˈædɪˌpoʊs/

adipose

脂肪的
Meaning
Relating to or consisting of animal fat; fatty.
Example
The doctor explained that the tissue was mainly adipose in nature.
医生解释说，组织主要是脂肪性的。
C2 adjective /ˌækwiˈɛsənt/

acquiescent

默许的
Meaning
ready to accept something without protest, or to do what someone else wants
Example
He gave an acquiescent smile and agreed to the plan.
他露出了一个默许的微笑，同意了这个计划。
C2 noun /ˌæpəˈrɪʃən/

apparition

幽灵现身
Meaning
A ghostly figure or an unusual or unexpected appearance.
Example
The children were frightened by the sudden apparition in the old house.
孩子们被老房子里突然出现的幽灵吓坏了。
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 adjective /ˈæn.ə.daɪn/

anodyne

无害的，缓解疼痛的
Meaning
Not likely to cause offense; bland or harmless. Also refers to something that relieves pain.
Example
The speaker’s anodyne remarks avoided controversy.
演讲者的无害评论避免了争议。
C2 adjective /əˈsɪdjʊləs/

acidulous

略带酸味或尖锐
Meaning
slightly sour or sharp in taste or manner
Example
The critic wrote an acidulous review of the movie.
评论家写了一篇尖锐的电影评论。
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 /əˈvʌŋkjələr/

avuncular

像叔叔一样友善
Meaning
kind and friendly, like an uncle
Example
He had an avuncular manner that made everyone feel comfortable.
他有一种让每个人都感到舒适的阿冯库拉尔风度。
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 /ˌɑːrbəˈriːtəm/

arboretum

植物园
Meaning
a place where trees, shrubs, and plants are grown for scientific study or public display
Example
We visited the city’s arboretum to learn about exotic trees.
我们参观了城市的植物园，了解异国树木。
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 verb əˈmiːljəreɪt

ameliorate

改善, 提高
Meaning
To make better; improve or enhance something.
Example
The new policies are designed to ameliorate living conditions.
新政策旨在改善生活条件。
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 /ˌætəlˈjeɪ/

atelier

工作室（艺术家或设计师的工作室）
Meaning
A workshop or studio, especially for an artist or designer.
Example
The painter invited us to his atelier to view his new collection.
画家邀请我们去他的工作室，观看他的最新系列作品。
C2 verb /ˌæpərˈteɪn/

appertain

属于
Meaning
to relate to or be connected with something
Example
The rules only appertain to members of the club.
规则只适用于俱乐部的成员。
C2 noun /əˈɡrɒnəmi/

agronomy

农业学
Meaning
The science and practice of soil management and crop production, focusing on the principles of plant and soil science to optimize agricultural productivity.
Example
Agronomy focuses on soil management and crop production.
农业学专注于土壤管理和作物生产。
C2 adverb /əˈθwɔːrt/

athwart

横向地, 反对
Meaning
Across or in opposition to something.
Example
A fallen tree lay athwart the road, blocking traffic.
一棵倒下的树横在路上，阻碍了交通。
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 /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 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 noun /ˈɔːspɪs/

auspice

预兆, 保护
Meaning
A sign, omen, or divine token; also refers to protection or support.
Example
The project was launched under the auspice of the government.
该项目在政府的保护下启动。
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 /æbˈhɔːr.ənt/

Abhorrent

令人厌恶的; 讨厌的
Meaning
extremely unpleasant and causing disgust; detestable
Example
The idea of animal cruelty is abhorrent to most people.
动物残忍的想法让大多数人感到恶心。