accountant
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B1 noun /əˈkaʊntənt/

accountant

会计
Meaning
a person whose job is to keep or check financial accounts
Example
The accountant prepared the financial reports for the company.
会计为公司准备了财务报告。
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。
C1 adjective /əˈluːf/

aloof

冷漠
Meaning
Not friendly or forthcoming; cool and distant.
Example
He remained aloof during the entire discussion.
他在整个讨论过程中都显得冷漠。
C2 noun /əˈmæl.ɡəm/

amalgam

混合物
Meaning
a mixture or blend of different things
Example
The new policy is an amalgam of several previous laws.
新政策是多个先前法律的混合物。
A2 verb əˈdres

address

处理
Meaning
To deal with or tackle (a problem or issue); to focus attention on.
Example
The government must address the issues of student politics.
政府必须处理学生政治问题。
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 /ˈɪəri/ or /ˈɛəri/

aery

鹰巢
Meaning
An eagle’s nest, or a lofty, airy dwelling.
Example
The eagle perched proudly near its aery high on the cliff.
鹰骄傲地停在悬崖上的它的巢附近。
C1 noun /əˈkʌmplɪs/

accomplice

同谋
Meaning
a person who helps another commit a crime
Example
The thief was arrested along with his accomplice.
小偷与他的同谋一起被捕。
B2 noun /ˌɔː.θɛnˈtɪs.ə.ti/

authenticity

真实性
Meaning
The quality of being authentic; genuineness or truthfulness.
Example
The authenticity of the document was verified.
文件的真实性已被验证。
C2 adjective /əˈsiːtɪk/

acetic

醋酸的
Meaning
relating to or containing acetic acid; sour or vinegary in taste or smell
Example
The acetic smell of vinegar filled the kitchen.
醋的醋酸味充满了厨房。
B2 noun /ˈɔːkʃən/

Auction

拍卖
Meaning
a public sale in which goods or property are sold to the highest bidder
Example
The antique furniture was sold at an auction last weekend.
古董家具在上周末的拍卖会上售出。
C1 noun /əˈseɪlənt/

assailant

攻击者
Meaning
a person who attacks another
Example
The police arrested the assailant at the scene.
警方在现场逮捕了攻击者。
C1 verb /əˈfɪks/

affix

附加 / 粘贴
Meaning
to attach or stick something firmly to another thing
Example
Please affix the stamp to the envelope.
请将邮票粘在信封上。
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。
B2 verb /ˈæɡ.rə.veɪt/

aggravate

加重
Meaning
To make a situation worse or more serious.
Example
Scratching the rash will only aggravate the condition.
抓破皮疹只会加重病情。
C1 adjective /iːsˈθɛθɪkəl/

aesthetical

美学的
Meaning
concerned with beauty or the appreciation of beauty; related to artistic taste or appearance
Example
The architect focused on the aesthetical balance of the building.
建筑师注重建筑的美学平衡。
B1 noun ədˈvɛnʧər ˈsiːkərz

Adventure Seekers

冒险者
Meaning
People who actively look for exciting and potentially risky activities or experiences.
Example
Sajek Valley is a popular destination for adventure seekers.
萨杰克谷是冒险者的热门目的地。
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 noun /əˈkriːʃən/

accretion

积累
Meaning
The process of growth or increase, typically by the gradual accumulation of additional layers or matter.
Example
The accretion of wealth allowed him to invest in various projects.
财富的积累使他能够投资于各种项目。
C1 noun /əˈstuːt.nəs/

astuteness

机智
Meaning
The ability to accurately assess situations or people and turn this to one's advantage.
Example
His astuteness helped in negotiations.
他的机智在谈判中起到了帮助作用。
B1 adverb /əˈsaɪd/

Aside

一边; 旁边; 离开主要部分
Meaning
to one side; apart; away from the main part
Example
Please set your book aside and listen to me.
请把书放到一边，听我说。
B2 noun /æʃ/

ash

灰烬
Meaning
the powdery residue left after the burning of a substance
Example
After the fire, only ash remained of the house.
火灾过后，只有房子的灰烬留下。
C1 noun ˈæŋkərɪdʒ

anchorage

停泊处
Meaning
A secure holding place; a place where ships can anchor safely.
Example
The boat was anchored near the shore for safety.
船只为了安全停靠在岸边。
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。
C1 adjective ˈɑː.dʒu.əs

arduous

艰苦的
Meaning
Involving or requiring strenuous effort; difficult and tiring.
Example
The trek through the mountains was an arduous journey.
穿越群山的徒步旅行是一段艰苦的旅程。
A2 noun /ˈæroʊ/

arrow

箭
Meaning
a thin, straight weapon with a pointed tip, shot from a bow
Example
The hunter shot an arrow at the target.
猎人向目标射出了一支箭。
C1 noun /ˈælɪbaɪ/

alibi

不在场证明
Meaning
A claim or piece of evidence that one was elsewhere when an act, typically a crime, was committed.
Example
She had a strong alibi that proved she was at the cinema during the theft.
她有一个强有力的辩解，证明她在偷窃发生时在电影院。
C1 noun /ɔːˈtɒmətən/

automaton

自动机器
Meaning
A machine that works automatically; also refers to a person who behaves like a machine, without thinking.
Example
He worked like an automaton, without showing any emotion.
他像自动机一样工作，没有表现出任何情感。
C1 adjective /əˈkɪn/

akin

相似的
Meaning
Of similar character or related by blood.
Example
His reaction was akin to shock.
他的反应与震惊相似。
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。
B2 adjective /ˌædvənˈteɪdʒəs/

Advantageous

有利的; 有益的; 有利润的
Meaning
beneficial; favorable; profitable
Example
This position offers advantageous opportunities for career growth.
这个职位为职业发展提供了有利的机会。
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。
C1 adjective /əˈpriː.ʃə.bəl/

Appreciable

可察觉的; 显著的; 在数量上可观的
Meaning
noticeable; significant; considerable in amount
Example
There was an appreciable improvement in his test scores.
他的考试成绩有了可察觉的改善。
A1 adjective /əˈfreɪd/

afraid

害怕
Meaning
feeling fear or anxiety; worried that something undesirable will happen
Example
She was afraid of the dark.
她害怕黑暗。
C1 adjective /ˌeɪˈtɪpɪkəl/

atypical

非典型
Meaning
not representative of a type, group, or class; unusual or abnormal
Example
The doctor said it was an atypical case of the disease.
医生说这是一个非典型的病例。
B1 adjective əkˈsep.tɪd

accepted

接受的
Meaning
Generally believed or recognized to be valid or correct.
Example
The accepted terms were discussed in detail.
已接受的条款已详细讨论。
A2 noun /ˈæk.tər/

Actor

演员
Meaning
a person whose profession is acting on the stage, in movies, or on television
Example
The famous actor won an award for his performance in the new movie.
那位著名的演员凭借在新电影中的表现赢得了奖项。
C1 noun /əˈbɪs/

abyss

深渊
Meaning
a deep, immeasurable space, chasm, or void; something seemingly without end
Example
The climbers looked down into the dark abyss below.
攀登者看着下面的黑暗深渊。
A1 noun /ˈɑːnti/

aunty

阿姨
Meaning
the sister of one’s father or mother; a term of respectful address for an older woman, especially in South Asian usage
Example
My aunty lives near our house and often visits us.
我的阿姨住在我们家附近，经常来看我们。
B1 adverb /əˈperəntli/

Apparently

显然;
Meaning
seemingly; as far as one knows or can see; clearly; evidently
Example
Apparently, the meeting has been postponed to next week.
显然，会议已被推迟到下周。
C2 noun /əˈluː.vi.əm/

alluvium

冲积土
Meaning
Fertile soil deposited by flowing water, especially in riverbanks.
Example
The alluvium in riverbanks is highly fertile for agriculture.
河岸上的冲积土对农业非常肥沃。
C1 adjective /ˈæŋ.ɡjə.lər/

Angular

角度的
Meaning
having sharp corners or edges; relating to angles
Example
The building has an angular design with sharp corners.
这座建筑具有角度设计，角落尖锐。
B2 verb /ˈænəlaɪz/

analyze

分析
Meaning
to examine something in detail to understand it better or draw conclusions
Example
Scientists analyze data to discover new patterns.
科学家分析数据以发现新模式。
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。
C1 noun /əˈnɒməli/

anomaly

异常
Meaning
something that deviates from the norm or expected result
Example
The sudden drop in temperature was considered an anomaly.
温度的突然下降被认为是一种异常。
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。
C1 noun /əˈrɪəz/

arrears

欠款
Meaning
Money that is owed and should have been paid earlier.
Example
She was months in arrears with her electricity bill.
她的电费账单已经拖欠了好几个月。
C1 adjective /əˈniːmɪk/

anemic

贫血
Meaning
Suffering from anemia; lacking in vitality, strength, or color.
Example
The doctor prescribed iron supplements for her anemic condition.
医生为她的贫血状态开了铁补充剂。
B2 adjective /əˈɡriːəbl/

Agreeable

宜人; 令人愉快; 迷人; 愿意同意
Meaning
pleasant; enjoyable; delightful; willing to agree
Example
The weather is very agreeable today.
今天的天气非常宜人。
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 adverb /əˈbɛd/

abed

在床上
Meaning
in bed
Example
She stayed abed all day due to illness.
由于生病，她整天都待在床上。
B2 adjective, noun /ədˈvaɪzəri/

advisory

咨询性的
Meaning
(adjective) having the power to give advice but not to make sure that it is followed; (noun) an official announcement containing information or a warning
Example
The committee serves in an advisory capacity to the board of directors.
委员会在董事会中担任咨询性职能。
B2 adjective /ˌæn.tiˈsoʊ.ʃəl/

Antisocial

反社会的；对社会秩序敌对
Meaning
avoiding social interaction; hostile to social order
Example
His antisocial behavior made it difficult for him to make friends.
他的反社会行为让他很难交到朋友。
C1 verb /ədˈmɒnɪʃ/

admonish

警告
Meaning
to warn or reprimand someone firmly; to advise or urge earnestly
Example
The teacher admonished the students for being late.
老师因为学生迟到而警告他们。
B2 verb /ˈæktɪveɪt/

activate

激活
Meaning
to make something start or function
Example
She pressed the button to activate the machine.
她按下按钮以激活机器。
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。
C1 noun əˈrɪd.ɪ.ti

aridity

干旱
Meaning
The state of being extremely dry, especially having insufficient rainfall to support vegetation.
Example
The aridity of the land is increasing due to climate change.
由于气候变化，土地的干旱正在加剧。
A2 noun /ədˈvæn.tɪdʒ/

Advantage

优势; 利益
Meaning
a condition or circumstance that puts one in a favorable position; a benefit
Example
Having a college degree gives you an advantage in the job market.
拥有大学学位可以在就业市场上为您提供优势。
C1 adjective /əˈnæl.ə.ɡəs/

analogous

类似的
Meaning
Comparable in certain respects, typically in a way that makes clearer the nature of things being compared.
Example
The human brain is analogous to a supercomputer.
人脑与超级计算机类似。
C1 noun /ˌæntɪˈsiːdənt/

antecedent

先例
Meaning
something that came before; a previous event, condition, or cause
Example
The cultural antecedents of this festival go back centuries.
这个节日的文化先例可以追溯到几个世纪前。
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。
B1 noun əˈnæl.ə.sɪs

analysis

分析
Meaning
Detailed examination and evaluation of data or information to understand its components and relationships.
Example
Data analysis is crucial for machine learning models.
数据分析对于机器学习模型至关重要。
B2 noun /ˈæstərɔɪd/

asteroid

小行星
Meaning
A small rocky body orbiting the sun, mostly found in the asteroid belt between Mars and Jupiter.
Example
The asteroid belt lies between the orbits of Mars and Jupiter.
小行星带位于火星和木星的轨道之间。
B2 noun ɔːˈtɒnəmi

autonomy

自治
Meaning
The right or condition of self-government; freedom from external control or influence.
Example
Autonomy was a primary demand.
自治是一个主要的要求。
C1 noun /ˈæmpɛər/

ampere

安培
Meaning
A unit of electric current in the International System of Units (SI), symbolized as A.
Example
The current flowing through the wire is measured in amperes.
流经电线的电流以安培为单位进行测量。
B1 noun /əˌkɒməˈdeɪʃən/

Accommodation

住宿
Meaning
a room, group of rooms, or building in which someone may live or stay
Example
The hotel provides comfortable accommodation for tourists.
酒店为游客提供舒适的住宿。
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 adjective, adverb /əˈfʊt/

afoot

进行中
Meaning
In progress; happening or being prepared.
Example
There are several new projects afoot in the company.
公司有几个新的项目正在进行中。
B2 verb /ˈæləkeɪt/

allocate

分配
Meaning
to distribute or assign resources, duties, or responsibilities for a specific purpose
Example
The manager allocated funds for the new project.
经理已为新项目分配资金。
C2 noun /ˌæfɛkˈteɪʃən/

affectation

Meaning
an unnatural behavior or speech intended to impress others
Example
Her British accent was just an affectation to sound sophisticated.
C2 noun /əˈdjuː/

adieu

Meaning
A farewell or goodbye, often used in a formal or poetic sense.
Example
She bid her friends adieu before leaving for France.
A2 verb /əˈpɪə/

appear

出现
Meaning
to become visible or come into sight; to seem
Example
She appeared suddenly at the door.
她突然出现在门口。
C1 noun /ˈɑː.kɪ.taɪp/

archetype

原型, 原始模型
Meaning
A very typical example of a certain person or thing; an original model or prototype.
Example
This painting is the archetype of modern art.
这幅画是现代艺术的原型。
C1 adjective /ˈeɪ.mi.ə.bəl/

Amiable

友好且愉快；性格好；善良
Meaning
friendly and pleasant; good-natured; kind
Example
My neighbor is very amiable and always greets everyone warmly.
我的邻居非常友好，总是热情地问候每个人。
A1 adverb /əˈweɪ/

Away

远
Meaning
to or at a distance; not present; absent
Example
He walked away from the noisy crowd.
他走远离了喧闹的人群。
B2 noun /əˈkaʊntɪŋ/

accounting

会计
Meaning
the process of recording, summarizing, and reporting financial transactions
Example
She works in the accounting department of a large firm.
她在一家大公司的会计部门工作。
B2 adjective /ˈæfluənt/

affluent

富裕
Meaning
having a great deal of money; wealthy
Example
She grew up in an affluent neighborhood.
她在一个富裕的社区长大。
B1 verb /əˈkjuːz/

accuse

指控
Meaning
to charge someone with a crime or wrongdoing
Example
She accused him of stealing her wallet.
她指控他偷了她的钱包。
C1 noun /əˌsæsɪˈneɪʃən/

assassination

刺杀
Meaning
The act of killing someone important, often for political or ideological reasons.
Example
The assassination of the president shocked the nation.
总统的刺杀震惊了整个国家。
C2 noun /ˈæmjʊlət/

Amulet

护身符; 护符
Meaning
an ornament or small piece of jewelry thought to give protection against evil, danger, or disease
Example
She wore a silver amulet around her neck for good luck.
她戴着一条银色的护身符在脖子上祈求好运。
C1 adverb /ˈæmpli/

amply

丰盛地
Meaning
more than sufficiently; generously
Example
She was amply rewarded for her hard work.
她因努力工作而得到了丰厚的奖励。
B2 conjunction /ˌɔːlˈbiː.ɪt/

albeit

尽管
Meaning
Although; even though.
Example
He finally agreed, albeit reluctantly.
他最终同意了，尽管不情愿。
B1 adjective /ˌɔːtəˈmætɪk/

automatic

自动
Meaning
working by itself without direct human control
Example
This car has an automatic transmission.
这辆车有自动变速器。
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。
B1 adjective /ˈæbsənt/

absent

缺席
Meaning
not present at a place or event
Example
She was absent from the meeting yesterday.
她昨天没有参加会议。
B1 noun /ˈɔːtəmoʊbiːl/

automobile

汽车
Meaning
a road vehicle powered by an engine, typically with four wheels
Example
He bought a new automobile last week.
他上周买了一辆新车。
B2 adverb /ˈæk.jə.rət.li/

Accurately

准确地，毫无错误地，正确地
Meaning
in an exact way, without any mistakes; precisely; correctly
Example
She accurately predicted the outcome of the election.
她准确地预测了选举结果。
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。
B1 noun /əˈtendəns/

Attendance

出席
Meaning
the action or state of going regularly to or being present at a place or event
Example
The teacher takes attendance at the beginning of each class.
老师在每节课开始时点名出席。
B2 noun /ˈɑːftərmɑːθ/

aftermath

后果
Meaning
the consequences or aftereffects of an event or situation, especially a disastrous one
Example
The aftermath of the earthquake was devastating.
地震的后果是毁灭性的。
C2 adjective /eɪˈrɪðmɪk/

arrhythmic

心律不齐
Meaning
Lacking a regular rhythm or beat.
Example
The patient had an arrhythmic heartbeat.
病人的心跳不规律。
B2 noun /əˈpɒstrəfi/

apostrophe

Meaning
A punctuation mark (') used to indicate possession or the omission of letters or numbers.
Example
You need an apostrophe in the word 'children’s'.
B1 verb /əˈrɛst/

arrest

逮捕
Meaning
to catch and hold by legal authority; to stop suddenly
Example
The police will arrest the suspect tomorrow.
警察明天会逮捕嫌疑人。
A2 adjective /ˈæfrɪkən/

african

非洲的
Meaning
relating to Africa or its people
Example
She studied African culture in university.
她在大学学习了非洲文化。
C1 noun /əˈsɛsər/

assessor

评估员
Meaning
a person who evaluates or estimates the nature, ability, or quality of something
Example
An external assessor reviewed the project report.
一位外部评估员审查了项目报告。
C2 noun /æbˈsɪʒən/

abscission

叶片脱落
Meaning
The natural detachment of parts of a plant, typically leaves or fruit.
Example
The autumn season is marked by the abscission of leaves from trees.
秋季的标志是树叶从树木上脱落。
B2 noun /ˈæsɪd/

acid

酸
Meaning
a chemical substance that reacts with bases and has a sour taste
Example
Lemons contain citric acid.
柠檬含有柠檬酸。
C1 noun /əˈvɜːrʒən/

aversion

厌恶
Meaning
a strong feeling of dislike or unwillingness towards something
Example
She has a strong aversion to smoking.
她对吸烟有强烈的反感。
A2 verb /ədˈmɪt/

admit

承认
Meaning
to confess to be true; to allow entrance; to accept as valid
Example
He had to admit his mistake to the teacher.
他不得不向老师承认自己的错误。
B2 noun /əˈtɜːrni/

attorney

律师
Meaning
a person who practices law; a lawyer
Example
She hired an attorney to represent her in court.
她聘请了一位律师来代表她出庭。
C2 noun /ˌæd.ʌmˈbreɪ.ʃən/

adumbration

模糊的预兆
Meaning
a vague foreshadowing or symbolic representation of something
Example
The play offers an adumbration of the political unrest to come.
这部剧提供了即将到来的政治动荡的模糊预兆。
B2 noun əˈkɔːrd

accord

协议
Meaning
An official agreement or treaty.
Example
The accord emphasized gradual progress.
协议强调了渐进的进展。
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。
C1 noun əˌsɪm.ɪˈleɪ.ʃən

Assimilation

同化
Meaning
Connecting new information with existing knowledge
Example
Proper assimilation of knowledge leads to effective learning.
有效的知识同化促进了有效的学习。
B1 adjective /ədˈvɛnʧərəs/

adventurous

冒险的
Meaning
Willing to take risks or try out new methods, ideas, or experiences.
Example
They participated in adventurous activities like kayaking and hiking.
他们参加了像皮划艇和远足这样的冒险活动。
A1 verb /ˈænsər/

answer

回答
Meaning
to respond to a question; to reply; to solve
Example
She will answer the phone when it rings.
她会在电话响时接电话。
B1 noun /ɛr pəˈluːʃən/

air pollution

空气污染
Meaning
The presence of harmful or poisonous substances in the air, typically caused by industrial processes, vehicle emissions, or other human activities.
Example
Air pollution from factories led to the first environmental movement.
工厂的空气污染导致了第一个环境运动的出现。
B2 adjective /ˈædmərəbəl/

Admirable

值得钦佩的
Meaning
প্রশংসনীয়; চমৎকার;
Example
Her dedication to helping others is truly admirable.
她帮助他人的奉献精神真是令人钦佩。
C1 verb /əˈnʌl/

annul

取消
Meaning
to declare something legally invalid or cancel it
Example
The court decided to annul the marriage due to fraud.
法院决定因欺诈取消婚姻。
C1 adjective ˌæɡrɪˈkʌltʃərəli sɪɡˈnɪfɪkənt

agriculturally significant

与农业相关的重要
Meaning
Important or crucial related to farming and agriculture
Example
Winter is agriculturally significant for crop production.
冬季对于作物生产至关重要。
B2 noun /ˌærɪˈstɑːkrəsi/

aristocracy

贵族
Meaning
a class of people holding exceptional rank and privileges, especially hereditary nobility
Example
The aristocracy often had influence over political decisions.
贵族往往对政治决策有影响。
B2 noun /ˌɔːltəˈreɪʃən/

alteration

改变
Meaning
a change or modification made to something
Example
The tailor made an alteration to the suit.
裁缝对西装做了改变。
C1 noun ˌæp.əˈreɪ.təs

apparatus

设备
Meaning
The technical equipment or machinery needed for a particular activity or purpose.
Example
The apparatus was designed to be eco-friendly.
该设备设计为环保型。
B2 noun /ˈæltɪtuːd/

altitude

高度
Meaning
the height of an object or point in relation to sea level or ground level
Example
The airplane is flying at an altitude of 30,000 feet.
飞机以30,000英尺的高度飞行。
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。
B2 adjective əˈstɒnɪʃɪŋ

astonishing

惊人
Meaning
Extremely surprising or impressive; amazing.
Example
The astonishing discovery changed the way we view the universe.
这个惊人的发现改变了我们看待宇宙的方式。
C1 noun /ˈæbdəmən/

abdomen

腹部
Meaning
The part of the body below the chest and above the hips that contains the stomach and other organs.
Example
He complained of pain in his abdomen.
他抱怨腹部疼痛。
B1 noun /ˈæl.ɪ.ɡeɪ.tər/

Alligator

短吻鳄
Meaning
a large reptile similar to a crocodile but with a shorter, wider head
Example
The alligator basked in the sun on the riverbank.
短吻鳄在河岸上晒太阳。
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。
C1 adjective /ˈærəbəl/

arable

可耕种的
Meaning
suitable for growing crops or farming
Example
The farmer purchased arable land to expand his crops.
农民购买了可耕种的土地，以扩大他的作物。
B2 verb /əˈsɛmbəl/

assemble

集合
Meaning
to gather or bring together in one place
Example
The students assembled in the hall for the meeting.
学生们为了会议在大厅里集合。