adulterant
All a b c d e f g h i j k l m n o p q r s t u v w x y z
All CEFR A1 A2 B1 B2 C1 C2
Content locale
EN 英语 BN 孟加拉语 HI 印地语 ES 西班牙语 FR 法语 DE 德语 RU 俄语 ZH 中文 JA 日语
All Vocabulary Cards All Vocabularies
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。
B1 noun ˌɑː.tɪˈfɪʃ.əl ɪnˈtɛl.ɪ.dʒəns

artificial intelligence

人工智能
Meaning
The theory and development of computer systems able to perform tasks normally requiring human intelligence.
Example
Artificial intelligence is revolutionizing education through smart tutoring.
人工智能通过智能辅导正在革新教育。
B1 adjective /ˈæŋk.ʃəs/

Anxious

焦虑的; 担心的
Meaning
feeling worried or nervous; eager with concern
Example
She felt anxious about her upcoming job interview.
她因即将到来的面试而感到焦虑。
B1 adverb /ˈæftərwərd/

afterward

之后
Meaning
at a later time; subsequently
Example
We went to dinner and watched a movie afterward.
我们去吃了晚餐，然后看了一部电影。
B1 adverb /ˈɑːf.tə.wərdz/

Afterwards

之后; 然后; 后来
Meaning
at a later time; after an event or time that has already been mentioned
Example
We had dinner and afterwards we watched a movie.
我们吃了晚餐，然后看了一部电影。
B1 noun əˈdɒp.ʃən

adoption

采用
Meaning
The process of accepting, embracing, or taking up something new, such as a practice, technology, or idea.
Example
The adoption of electric vehicles is increasing worldwide.
全球电动车的采用正在增加。
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 noun /ˈæftərˌθɔːt/

afterthought

Meaning
Something added or considered later than originally planned.
Example
The gift seemed like an afterthought rather than a genuine gesture.
C1 adjective /əˈdɒptɪv/

adoptive

收养的
Meaning
relating to the adoption of a child or the act of taking something as one’s own
Example
She grew up in a loving adoptive family.
她在一个充满爱的收养家庭中长大。
C1 adjective /əˈbɪzməl/

abysmal

极其糟糕 / 可怕
Meaning
extremely bad or appalling
Example
The team's performance was abysmal.
团队的表现非常糟糕。
C2 verb /ˈæbnɪˌɡeɪt/

abnegate

放弃
Meaning
to deny or renounce something, especially a right or desire
Example
She chose to abnegate her personal interests for the sake of the team.
她选择为团队的利益放弃个人利益。
B1 noun ˈɔːdioʊ ˈlɛsənz

audio lessons

音频课程
Meaning
Educational content delivered through sound recordings, typically used for language learning and skill development.
Example
Audio lessons are useful for listening skills.
音频课程对于听力技能非常有用。
C2 noun /ˈɑːrkeɪˌɪzəm/

archaism

古词
Meaning
a word, expression, or style of language that is no longer in everyday use
Example
The poem is full of archaisms that give it an old-fashioned flavor.
这首诗充满了古词，使其带有一种过时的味道。
C1 noun /ˈæpərtʃər/

aperture

孔洞 / 缝隙
Meaning
an opening, hole, or gap, especially one that lets in light
Example
Light entered through the small aperture in the wall.
光线通过墙上的小孔径进入。
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。
A1 adverb /əˈɡen/

Again

再
Meaning
once more; another time; in addition
Example
I need to read this book again to understand it better.
我需要再次阅读这本书，以更好地理解它。
C2 noun /əˈpɒθəˌkɛri/

apothecary

药剂师
Meaning
A historical term for a person who prepared and sold medicines and drugs.
Example
The village apothecary provided remedies for many common illnesses.
村里的药剂师为许多常见的疾病提供了治疗。
A1 noun /ˈeɪprɪl/

april

四月
Meaning
the fourth month of the year in the Gregorian calendar
Example
April is known for its pleasant spring weather.
四月以宜人的春天天气而闻名。
C2 adjective /ˈɑːrtləs/

artless

天真, 简单
Meaning
Without deception or pretentiousness; natural and simple.
Example
Her artless smile made everyone feel at ease.
她天真的微笑让每个人都感到轻松。
B2 verb əˈkwaɪər

acquire

获得
Meaning
To gain or obtain something, especially knowledge or skills, through effort or experience.
Example
Volunteers acquire new skills through their experiences.
志愿者通过他们的经验获得新技能。
B2 noun /əˈstrɒlədʒi/

astrology

占星术
Meaning
the study of the movements and relative positions of celestial bodies interpreted as having an influence on human affairs
Example
She studied astrology to understand her future.
她学习占星术来了解她的未来。
B1 noun /ˈæŋɡl/

angle

角度
Meaning
The space between two intersecting lines or surfaces at the point where they meet.
Example
The teacher explained how to measure an angle in geometry.
老师解释了如何在几何学中测量角度。
C2 noun /əˈkʌmpənɪst/

accompanist

伴奏者
Meaning
A person who plays a musical instrument to support a singer or another musician.
Example
The pianist served as the accompanist for the singer during the concert.
钢琴家在音乐会上充当了歌手的伴奏者。
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。
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。
B2 adjective /əˈfektɪd/

Affected

受影响的；被触动的
Meaning
influenced; impacted; touched by something
Example
The flood-affected areas need immediate assistance.
受洪水影响的地区需要立即的援助。
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 noun, adverb /ˈeɪliəs/

alias

别名
Meaning
A false or assumed identity; also used to mean 'otherwise called'.
Example
The criminal was known by the alias 'Shadow'.
罪犯以'影子'为别名。
C1 adjective /əˈrɛstɪŋ/

arresting

引人注目的
Meaning
Attracting attention in a striking or impressive way.
Example
The actress gave an arresting performance.
这位女演员给出了引人注目的表演。
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。
C1 noun /ˌædəˈreɪʃən/

adoration

崇拜 / 深厚的爱
Meaning
deep love and respect; worship
Example
The fans showed their adoration for the singer.
粉丝们展示了他们对歌手的崇拜。
B2 adjective /əˈten.tɪv/

Attentive

专心的; 警觉的; 留心的
Meaning
careful to pay attention; alert and observant
Example
The attentive student listened carefully to every word the teacher said.
专心的学生仔细地听了老师说的每一个字。
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 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。
B2 adverb /əˈlɛdʒɪdli/

allegedly

据称
Meaning
used to say that something is claimed to be true, though not proven
Example
He was allegedly involved in the robbery.
他据称参与了抢劫。
B2 noun /əˈnælədʒi/

analogy

类比
Meaning
A comparison between two things for the purpose of explanation or clarification.
Example
The teacher used the analogy of a tree to explain the structure of an essay.
老师用树木的类比来解释文章的结构。
C1 noun /əˈsɪdɪti/

acidity

酸度
Meaning
the quality or degree of being acidic; the amount of acid present in a substance
Example
The acidity of the soil affects how well crops grow.
土壤的酸度会影响作物的生长。
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。
C1 adjective /ˈæm.ɪ.kə.bəl/

amicable

友好的
Meaning
Having a spirit of friendliness; without serious disagreement or rancor.
Example
They reached an amicable agreement.
他们达成了友好的协议。
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。
B1 noun /ˌæv.əˈkɑː.doʊ/

Avocado

牛油果
Meaning
a green pear-shaped fruit with creamy flesh and high fat content, often used in healthy diets
Example
Avocado is rich in healthy fats and is popular in salads and toast.
牛油果富含健康脂肪，在沙拉和吐司中很受欢迎。
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。
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 adverb /ˈæŋkʃəsli/

anxiously

焦急地
Meaning
in a worried, nervous, or uneasy manner; with anxious anticipation
Example
She waited anxiously for the exam results.
她焦急地等待考试结果。
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。
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。
A2 adjective, adverb, interjection /ɔːlˈraɪt/

alright

没问题
Meaning
satisfactory or acceptable; safe or unharmed; used to express agreement or acknowledgment
Example
Everything is going to be alright.
一切都会没问题的。
B2 noun /ˌɑːr.kiˈɑː.lə.dʒi/

archeology

考古学
Meaning
the study of human history and prehistory through excavation and analysis of artifacts and structures
Example
She decided to study archeology to learn about ancient civilizations.
她决定学习考古学，以了解古代文明。
A2 preposition /əˈɡɛnst/ or /əˈɡeɪnst/

against

Meaning
In opposition to; contrary to; touching or resting on.
Example
They voted against the proposal.
C2 adjective əˈsɪd.ju.əs

assiduous

勤奋或刻苦
Meaning
Showing great care and perseverance; diligent and hardworking.
Example
His assiduous efforts led to a successful career.
他的勤奋努力带来了成功的事业。
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。
B2 adjective/verb /əˈprɒksɪmət/

approximate

大约的
Meaning
close to the actual but not exact; to estimate or calculate roughly
Example
The cost is approximate and may change later.
这个成本是大约的，之后可能会改变。
B1 verb /əˈtʃiːv/

achieve

实现
Meaning
to successfully bring about or reach a desired goal or result
Example
She worked hard to achieve her dream of becoming a doctor.
她为实现成为医生的梦想而努力工作。
B2 verb /əˈkɒmədeɪt/

accommodate

容纳
Meaning
To provide lodging, space, or meet the needs of someone.
Example
The hotel can accommodate up to 200 guests.
酒店可以容纳最多200位客人。
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。
B1 verb /əˈsɪst/

assist

帮助
Meaning
to help or support someone in doing something
Example
The nurse will assist the doctor during the surgery.
护士将协助医生进行手术。
C1 noun /ˈæntɪˌdoʊt/

antidote

解毒药
Meaning
A substance that neutralizes the effects of a poison; something that relieves or counteracts.
Example
The doctor quickly administered an antidote to the snake venom.
医生迅速给蛇毒注射了解毒药。
B2 noun ˈænsɛstərz

Ancestors

祖先
Meaning
A person from whom one is descended; a forefather.
Example
The family tree shows the names of all ancestors.
家谱显示所有祖先的名字。
B2 verb /əˈkweɪnt/

acquaint

使熟悉
Meaning
to make someone familiar with something; to inform or introduce
Example
Please acquaint yourself with the safety guidelines before operating the machine.
请在操作机器前，熟悉安全指导原则。
A2 adjective /əˈmeɪzɪŋ/

amazing

惊人
Meaning
causing great surprise or wonder; astonishing
Example
The magician performed an amazing trick.
魔术师表演了一个惊人的魔术。
C1 verb /əbˈsteɪn/

abstain

放弃
Meaning
To restrain oneself from indulging in or partaking of something.
Example
People often abstain from digital devices to enhance focus.
人们常常放弃使用数字设备以提高集中力。
C1 adjective /ɑːrˈkeɪɪk/

archaic

Meaning
very old or old-fashioned; belonging to an earlier time
Example
Some laws are considered archaic and no longer relevant.
C1 adverb /əˈlɒft/

aloft

高空
Meaning
Up in or into the air; overhead.
Example
The kite was flying aloft in the clear sky.
风筝在晴空中高飞。
A2 noun /ˈeə.ri.ə/

area

Meaning
a particular region or space; the extent of a surface
Example
This area is known for its beautiful parks.
C1 noun ˈæltruɪzəm

altruism

利他主义, 无私地关心他人福祉
Meaning
The belief in or practice of disinterested and selfless concern for the well-being of others.
Example
His altruism motivated others to volunteer.
他的利他主义激励其他人去做志愿者。
B2 noun /ˈeɪ.prɪ.kɒt/

Apricot

杏子
Meaning
a small orange-colored fruit with a soft skin and sweet flesh
Example
The apricot tree produces sweet fruit in summer.
杏树在夏天结出甜美的果实。
A2 adjective ˈæv.ər.ɪdʒ

average

平均
Meaning
A number expressing the central or typical value in a set of data; constituting the result obtained by adding together several amounts and then dividing this total by the number of amounts.
Example
The average score reflects overall performance.
平均分数反映了整体表现。
C2 noun /əˈnæθəmə/

anathema

厄奈赛玛 / 被憎恶的事物
Meaning
something or someone intensely disliked or strongly condemned
Example
Violence is anathema to her peaceful nature.
暴力对她平和的性格是厄奈赛玛。
C1 noun esˈθet.ɪks

aesthetics

美学
Meaning
A set of principles concerned with the nature and appreciation of beauty, especially in art and design.
Example
Interior design focuses on aesthetics and functionality.
室内设计专注于美学和功能性。
B2 noun /eɪd/

aide

助手
Meaning
An assistant or helper, especially to an important person.
Example
The senator’s aide organized the meeting with journalists.
参议员的助手组织了与记者的会议。
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.
A2 adverb /ˌɛniˈmɔr/

anymore

不再
Meaning
used to refer to the present time, typically to mean no longer
Example
He doesn’t live here anymore.
他不再住在这里。
A1 adverb /əˈɡoʊ/

ago

以前
Meaning
Used to indicate how long before the present something happened.
Example
I met her two years ago.
我在两年前见过她。
B2 noun /əkˌsɛs.əˈbɪl.ə.ti/

accessibility

可访问性
Meaning
Accessibility or availability, easy availability of any place or service.
Example
Improved accessibility helps people with disabilities.
改善的可访问性帮助残疾人。
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。
C1 noun /ˈænəɡræm/

anagram

通过重新排列另一个单词或短语的字母而形成的单词或短语。
Meaning
A word or phrase formed by rearranging the letters of another word or phrase.
Example
The word 'listen' is an anagram of 'silent'.
'listen' 是 'silent' 的变位词。
B2 noun /ˈæli/

alley

小巷
Meaning
a narrow passageway between or behind buildings
Example
They walked through a dark alley to reach the main road.
他们走过一条黑暗的小巷，来到主干道。
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。
B2 noun, verb /ˈævəlæntʃ/

avalanche

Meaning
(noun) a mass of snow, ice, and rocks falling rapidly down a mountainside; a sudden overwhelming quantity; (verb) to descend like an avalanche
Example
The avalanche buried the mountain road under tons of snow.
B2 adverb /ˈædɪkwətli/

adequately

恰当地
Meaning
in a satisfactory manner
Example
He completed the task adequately, but could improve next time.
他适当地完成了任务，但下次可以改进。
B2 adjective /ɔːˈθen.tɪk/

Authentic

真实的; 真实; 不虚假
Meaning
genuine; real; not fake or copied
Example
The museum displays only authentic artifacts from ancient civilizations.
博物馆只展示来自古代文明的真实文物。
C1 noun /æɡˈnɒs.tɪk/

agnostic

不可知论者
Meaning
a person who believes that nothing is known or can be known about the existence of God; uncertain in belief
Example
He described himself as an agnostic rather than an atheist.
他描述自己是一个不可知论者，而不是一个无神论者。
C1 noun /ˌævɒ̃ˈɡɑːrd/

avantgarde

先锋派
Meaning
people or works that are innovative, experimental, and ahead of their time
Example
The avantgarde of the 20th century reshaped modern art.
20世纪的先锋派重新塑造了现代艺术。
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.
B1 adjective /ˌækəˈdɛmɪk/

academic

学术的
Meaning
related to education, learning, or scholarly activities
Example
She has an outstanding academic record.
她有一个卓越的学术记录。
B1 verb /ədˈvaɪz/

advise

建议
Meaning
to recommend what should be done; to give advice
Example
The doctor advised him to rest for a week.
医生建议他休息一周。
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。
C1 adjective /əˈdɛpt/

adept

熟练
Meaning
Very skilled or proficient at something.
Example
She is adept at solving complex mathematical problems.
她擅长解决复杂的数学问题。
C1 verb /əbˈzɒlv/

absolve

赦免
Meaning
to free someone from blame, guilt, or responsibility; to pardon
Example
The priest absolved him of his sins.
牧师赦免了他所有的罪。
C1 adjective /ˌeɪsɪˈmɛtrɪk/

asymmetric

不对称的
Meaning
Not having equal or corresponding parts; lacking symmetry.
Example
The design of the building is asymmetric and unusual.
这座建筑的设计是不对称的且不寻常。
A1 determiner/pronoun /əˈnʌðər/

another

另一个
Meaning
one more person or thing of the same type
Example
Can I have another cup of tea?
我可以再来一杯茶吗？
A2 noun /ˈæk.ʃənz/

actions

行动
Meaning
The fact or process of doing something, typically to achieve an aim.
Example
Immediate actions are needed for pollution control.
需要立即采取行动来控制污染。
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 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。
B1 adjective /æθˈlɛtɪk/

athletic

运动员的，强壮的
Meaning
physically strong, fit, and active; related to athletes or sports
Example
She has an athletic body because she exercises regularly.
她有一个运动员的身体，因为她定期锻炼。
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。
C1 noun, adjective /ˌæntiˈsɛptɪk/

antiseptic

Meaning
A substance that prevents the growth of disease-causing microorganisms; clean and free from germs.
Example
The nurse applied an antiseptic to the wound.
A1 preposition, adverb /əˈbaʊt/

about

关于
Meaning
concerning; on the subject of; approximately
Example
We talked about the new project yesterday.
我们昨天谈论了新项目。
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。
A2 adverb /æz ˈjuː.ʒu.əl/

As usual

像往常一样
Meaning
in the way that is normal or typical; customarily
Example
As usual, he arrived late to the meeting.
像往常一样，他迟到了会议。
A2 verb /əˈreɪndʒ/

arrange

安排
Meaning
to organize or put in order; to plan or prepare
Example
She arranged the flowers in a vase.
她把花插在花瓶里。
C1 adjective /ˌeɪpəˈlɪtɪkəl/

apolitical

不关心政治
Meaning
not interested in or not connected with politics
Example
She prefers to stay apolitical and focus on her work.
她更喜欢保持不关心政治的态度，专注于自己的工作。
B2 verb ədˈhɪər

adhere

附着
Meaning
To stick firmly to something or stay attached.
Example
Neutrons adhere to protons.
中子附着在质子上。
C1 adjective /əˈfɜːrmətɪv/

affirmative

肯定的
Meaning
expressing agreement, approval, or a positive response
Example
She gave an affirmative answer to the proposal.
她对提案做出了肯定的回答。
C1 adjective /ˈærɪd/

arid

干旱的
Meaning
extremely dry; lacking in interest or excitement
Example
The desert is known for its arid climate.
沙漠以其干旱的气候而闻名。
A2 adjective /əˈwɛər/

aware

意识到
Meaning
having knowledge or perception of a situation or fact
Example
She is aware of the risks involved.
她意识到其中的风险。
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。
A1 noun ækˈtɪv.ɪ.ti

Activities

活动
Meaning
A thing that a person or group does or has done.
Example
Productive activities drive progress.
生产性的活动推动了进步。
C2 noun /ˈænsɛstrɪs/

ancestress

女祖先
Meaning
a female ancestor; a woman from whom one is descended
Example
She discovered that her ancestress came from a small village in Bengal.
她发现自己的女祖先来自孟加拉的一个小村庄。
C2 noun /ˈæmɪti/

amity

友谊
Meaning
A friendly relationship between people or countries.
Example
The treaty helped maintain amity between the neighboring nations.
该条约帮助维护邻国之间的友好关系。
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'.
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。
C1 verb /əˈpreɪz/

appraise

评估
Meaning
to evaluate the value, quality, or importance of something
Example
The jeweler appraised the diamond before buying it.
珠宝商在购买之前评估了钻石。
B2 adjective /əˈkjuːt/

acute

急性
Meaning
present or experienced to a severe or intense degree; having sharp perception
Example
The patient suffered from acute pain after the surgery.
手术后，病人感到剧烈的疼痛。
C2 noun /ˈeə.rəm/

Arum

阿罗姆
Meaning
a plant with large arrow-shaped leaves and a white spathe, also known as taro
Example
Arum leaves are commonly used in Bengali cuisine for cooking.
阿罗姆叶子常用于印度菜肴中进行烹饪。
A2 noun /əˈpɔɪnt.mənt/

Appointment

约会; 任命;
Meaning
an arrangement to meet someone at a particular time and place; the action of appointing someone to a job or position
Example
I have a doctor's appointment at 3 PM.
我有一个下午三点的医生预约。
B1 noun /əˈnaʊnsmənt/

announcement

公告
Meaning
a public or formal statement giving information
Example
The principal made an important announcement about the new schedule.
校长关于新时间表做了一个重要的公告。
B2 verb /əˈplɔːd/

applaud

鼓掌
Meaning
to show approval by clapping or expressing admiration
Example
The audience applauded the performance.
观众为表演鼓掌。
C1 verb /əˈkwɪt/

acquit

宣告无罪
Meaning
to declare someone not guilty of a criminal charge; to conduct oneself in a specified way
Example
The jury decided to acquit the defendant of all charges.
陪审团决定将被告从所有指控中无罪释放。
B1 adjective /æmˈbɪʃ.əs/

Ambitious

雄心勃勃
Meaning
having strong desire for success or achievement; aspiring
Example
She is ambitious and works hard to achieve her goals.
她很有雄心，努力工作以实现她的目标。
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。