assessor
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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。
B2 verb /əˈweɪkən/

awaken

唤醒
Meaning
to stop sleeping; to cause to become aware
Example
The loud noise awakened the entire neighborhood.
大声的噪音唤醒了整个邻里。
B2 verb /əˈlɛdʒ/

allege

声称
Meaning
to claim or assert something, typically without proof
Example
The witness alleged that the man was at the crime scene.
证人声称该男子在犯罪现场。
B1 noun /əˈfer/

Affair

事件; 事务;
Meaning
an event or situation; a matter that someone deals with
Example
The wedding was a grand affair with hundreds of guests.
婚礼是一个盛大的事件，邀请了数百位宾客。
C1 verb /ˌæprɪˈhɛnd/

apprehend

逮捕
Meaning
to arrest or seize someone; to understand or perceive something
Example
The police managed to apprehend the thief after a long chase.
警察在一场长时间的追逐后成功逮捕了小偷。
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 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。
A2 noun /əˈdɪʃ.ən/

Addition

加法; 添加过程
Meaning
the process of adding numbers; something that is added
Example
The addition of a new room made the house more spacious.
新房间的加入使房子更加宽敞。
B1 noun /ˈæŋkəl/

ankle

脚踝
Meaning
the joint connecting the foot with the leg
Example
He twisted his ankle while playing football.
他在踢足球时扭伤了脚踝。
C1 noun /əˈsɛnʃən/

ascension

上升
Meaning
The act of rising or going up, often to an important position or a higher place.
Example
His rapid ascension in the company surprised everyone.
他在公司的迅速上升让每个人都感到惊讶。
B2 verb /əˈkʌstəm/

accustom

习惯
Meaning
to make someone familiar with something through regular experience or use
Example
It took him a while to accustom himself to the new environment.
他花了一些时间来适应新的环境。
B1 noun /ˈækses/

Access

访问
Meaning
the ability, right, or permission to approach, enter, or pass to and from a place
Example
Students have access to the library 24 hours a day.
学生可以全天候访问图书馆。
C1 verb /ˈæɡənaɪz/

agonize

煎熬
Meaning
To suffer extreme physical or mental pain; to spend time worrying.
Example
She agonized for days over whether she had made the right decision.
她为是否做出了正确的决定而痛苦了好几天。
B2 adjective /ˈæm.pəl/

Ample

充足的；足够的；丰富的
Meaning
large in size, extent, or capacity; plentiful; more than enough
Example
We have ample time to finish the project before the deadline.
我们有足够的时间在最后期限前完成项目。
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。
A1 noun/adjective /əˈmerɪkən/

american

美国人
Meaning
relating to the United States or its people
Example
She is an American citizen.
她是一个美国公民。
A1 pronoun /ˈɛnɪθɪŋ/

anything

任何事物
Meaning
any object, event, or matter; whatever thing
Example
You can ask me anything about the project.
你可以问我关于项目的任何问题。
C1 noun /əˈfɪn.ɪ.ti/

affinity

亲和力
Meaning
A natural liking for or attraction to a person, thing, idea, etc.
Example
She has an affinity for classical music.
她对古典音乐有亲和力。
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 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。
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。
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。
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。
B2 adjective ænˈtɪsɪpeɪtɪd

anticipated

预期的
Meaning
Expected or predicted to happen; foreseen in advance.
Example
The anticipated growth exceeded the city's capacity.
预期的增长超出了城市的容量。
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 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。
A1 noun /ɑːrm/

Arm

手臂
Meaning
the upper limb of the human body from the shoulder to the hand
Example
She raised her arm to ask a question.
她举起了手臂来提问。
A2 noun /ˈæŋ.ɡər/

Anger

愤怒
Meaning
a strong feeling of annoyance, displeasure, or hostility
Example
His anger was evident when he slammed the door.
当他摔门时，他的愤怒显而易见。
C1 verb /əˈpɛnd/

append

附加
Meaning
to add something as an attachment or supplement, usually at the end of a document or list
Example
She decided to append a note to the end of the report.
她决定在报告的末尾添加一条注释。
C1 adjective /ˌæpəˈθɛtɪk/

apathetic

Meaning
showing or feeling little or no interest, enthusiasm, or concern
Example
He was apathetic about the outcome of the match.
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。
C1 verb /əˈliː.vi.eɪt/

alleviate

缓解或减轻
Meaning
To make suffering, deficiency, or a problem less severe; to relieve or ease.
Example
Meditation can alleviate stress and improve focus.
冥想可以缓解压力并改善集中力。
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 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 noun ˌæd.æpˈteɪ.ʃən

adaptation

适应
Meaning
The action or process of adapting or being adapted.
Example
Adaptation to climate change is critical for resilience.
适应气候变化对于韧性至关重要。
C1 verb ɔːɡˈmɛntɪŋ

augmenting

增加
Meaning
Increasing; making something greater in size, number, or degree
Example
Life expectancy is augmenting with advancements in healthcare.
随着医疗保健的进步，预期寿命正在增加。
B2 noun /əˈkɔːrdəns/

accordance

一致
Meaning
agreement or harmony with something; compliance with rules, laws, or wishes
Example
The policy was implemented in accordance with international law.
该政策是按照国际法实施的。
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。
C2 adjective /ˌæktʃuˈɛəriəl/

actuarial

精算的
Meaning
Relating to actuaries or their work of analyzing financial risk and uncertainty, especially in insurance and pensions.
Example
The company relied on actuarial reports to set insurance premiums.
公司依赖精算报告来设定保险费率。
B1 noun /əˈpɒlədʒi/

apology

Meaning
a statement expressing regret for something wrong or hurtful
Example
He offered an apology for being late to the meeting.
C1 noun /əˈsæsɪn/

Assassin

刺客
Meaning
a person who murders an important person for political or religious reasons
Example
The president was protected from potential assassins by security guards.
总统被保安人员保护，免受潜在刺客的攻击。
A2 noun /ˈeɪn.dʒəl/

Angel

天使
Meaning
a spiritual being believed to act as an attendant, agent, or messenger of God
Example
She looked like an angel in her white dress.
她穿着白裙子看起来像一个天使。
B1 noun /ˈɑː.kɪ.tekt/

architect

建筑师
Meaning
a person who designs buildings and oversees their construction
Example
The architect designed a modern office building.
建筑师设计了一座现代的办公楼。
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。
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。
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.
C2 noun ˌæɡ.roʊ.iˈkɒl.ə.dʒi

agroecology

农业生态学
Meaning
A scientific discipline that studies agricultural systems by applying ecological concepts and principles.
Example
Agroecology promotes eco-friendly farming.
农业生态学促进环保农业。
B2 adjective /əˈbjuːsɪv/

abusive

侮辱性的 / 造成身体或口头伤害
Meaning
extremely offensive or insulting; involving physical or verbal harm
Example
She left her job because of her abusive boss.
她因为她那位虐待的老板而离开了工作。
B1 verb /əˈlɑːrm/

alarm

惊吓
Meaning
to warn of danger; to frighten or disturb
Example
The loud noise alarmed the residents.
巨响吓到了居民。
B2 adverb /əˈproʊpriətli/

appropriately

恰当地
Meaning
in a way that is suitable or proper for a particular situation
Example
She was dressed appropriately for the event.
她为活动穿着得体。
A2 noun /ˈæk.ʃən/

Action

行动; 活动
Meaning
the process of doing something; something that is done
Example
We need to take action to solve this problem.
我们需要采取行动来解决这个问题。
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。
B2 adjective /əˈstɒnɪʃt/

astonished

震惊的
Meaning
feeling very surprised or amazed
Example
She was astonished by the magician's incredible trick.
她被魔术师不可思议的把戏震惊了。
B1 adjective /ˈæn.ju.əl/

annual

年度
Meaning
happening once every year
Example
The company holds an annual meeting for all its shareholders.
公司每年为所有股东举办年度会议。
B2 noun ˌæs.pɪˈreɪ.ʃən

aspiration

志向
Meaning
A hope or ambition of achieving something, a strong desire or goal to achieve something.
Example
His aspiration is to become a successful entrepreneur.
他的志向是成为一名成功的企业家。
B2 noun əˈʃɔː.rəns

assurance

保证
Meaning
A positive declaration intended to give confidence; a promise.
Example
Assurance of quality is a priority for the council.
质量保证是委员会的优先事项。
B1 noun /ˈæksɛnt/

accent

口音
Meaning
a distinctive way of pronouncing a language, especially one associated with a particular country or region
Example
She spoke English with a strong French accent.
她说英语时带着浓重的法语口音。
B2 verb /əˈweɪt/

await

等待
Meaning
to wait for someone or something; to expect
Example
We await your response with great anticipation.
我们满怀期待地等待你的回应。
B1 noun /ˈætɪˌtjuːd/

attitude

Meaning
A settled way of thinking or feeling about someone or something, often reflected in behavior.
Example
Her positive attitude helped her overcome many challenges.
C1 noun /əˌfɪl.iˈeɪ.ʃən/

affiliation

隶属关系
Meaning
The state or process of affiliating or being affiliated; a connection or association.
Example
His affiliation with the company lasted for a decade.
他与公司的隶属关系持续了十年。
C1 adverb /iːsˈθetɪkli/

aesthetically

从审美角度
Meaning
in a way that is concerned with beauty or visual appeal
Example
The building is aesthetically pleasing despite its simple design.
尽管设计简单，这座建筑在审美上很吸引人。
C1 noun /əˈrɪs.tə.kræt/

Aristocrat

贵族; 贵族阶层的人
Meaning
a member of the aristocracy; a person of noble rank or birth
Example
The aristocrat lived in a magnificent castle.
那个贵族住在一座宏伟的城堡里。
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。
A2 noun /əˈbɪləti/

Ability

能力; 技能
Meaning
the power or skill to do something; capacity
Example
She has the ability to solve complex problems.
她有解决复杂问题的能力。
B2 adjective /ˈeɪ.li.ən/

alien

外星人
Meaning
Belonging to a foreign country or nation; extraterrestrial.
Example
The telescope is capable of detecting alien signals.
望远镜能够探测外星信号。
B2 verb /əˈpɔɪnt/

appoint

任命
Meaning
to choose someone for a job or position
Example
The board will appoint a new director.
董事会将任命一位新董事。
C1 noun əˌkred.ɪˈteɪ.ʃən

accreditation

认证
Meaning
The action or process of officially recognizing someone or something as having a particular status or being qualified to perform a particular activity.
Example
Accreditation ensures institutional credibility.
认证确保了机构的可信度。
C1 verb /əˈdʒɔɪn/

adjoin

毗邻
Meaning
To be next to and joined with something.
Example
Their house adjoins the park.
他们的房子毗邻公园。
C2 verb /əˈvaʊ/

avow

公开宣誓
Meaning
to openly declare or admit something, often publicly and firmly
Example
He avowed his loyalty to the cause without hesitation.
他毫不犹豫地公开宣誓忠诚于事业。
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。
C2 adjective /əˈkɪliən/

achillean

阿基里斯式
Meaning
like or characteristic of Achilles; strong but vulnerable
Example
His achillean pride made him blind to danger.
他的阿基里斯式骄傲让他对危险视而不见。
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。
A2 noun /ˈɔːtoʊ/

auto

汽车
Meaning
A motor vehicle, especially a car.
Example
He drove his auto to the market.
他开车去了市场。
C1 noun /əˈtaɪər/

attire

服装
Meaning
Clothing, especially formal or elegant wear.
Example
She wore traditional attire at the wedding ceremony.
她在婚礼仪式上穿着传统服装。
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。
C2 noun /ˈɔːrɪkl̩/

auricle

耳朵的外部部分
Meaning
The external part of the ear; also an upper chamber of the heart in anatomy.
Example
The doctor examined the patient’s auricle for signs of infection.
医生检查了病人的耳朵外部部分是否有感染迹象。
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 /ˌænəlˈdʒiːzɪk/

analgesic

止痛药
Meaning
A drug or substance that relieves pain.
Example
She took an analgesic to ease her headache.
她吃了止痛药来缓解头痛。
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 verb /əˈdjuːs/

adduce

提供证据或理由
Meaning
To provide evidence or reasons to support an argument or idea.
Example
The lawyer adduced several examples to support his case.
律师引用了几个例子来支持他的案件。
C1 noun /ˌæntiˈklaɪmæks/

anticlimax

反高潮
Meaning
A disappointing end after a big build-up of excitement or expectation.
Example
The movie's ending was an anticlimax after such a thrilling story.
电影的结局是一个反高潮，在如此激动人心的故事之后。
B1 noun /ˈænəlɪst/

analyst

分析师
Meaning
a person who studies or examines something carefully to understand it or make decisions
Example
The financial analyst predicted a rise in the stock market.
金融分析师预测股票市场上涨。
B2 adjective, noun, verb /ˈæb.strækt/

abstract

抽象的, 摘要
Meaning
existing in thought or as an idea but not having physical or concrete existence; a summary of a text
Example
The artist is known for her abstract paintings.
艺术家以其抽象画作而闻名。
C2 adjective /ˌæp.rɪˈhen.sə.bəl/

Apprehensible

可理解的
Meaning
able to be understood or grasped; comprehensible
Example
The complex theory became apprehensible after the professor's explanation.
复杂的理论在教授的讲解后变得可理解。
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。
A2 verb /əˈpɒlədʒaɪz/

apologize

道歉
Meaning
to say sorry for something wrong you have done
Example
He apologized for being late to the meeting.
他因迟到而道歉。
C1 noun /ˌædməˈnɪʃən/

admonition

警告
Meaning
a firm warning or reprimand; gentle or earnest advice
Example
He received an admonition for his careless work.
他因不小心的工作收到了警告。
B1 noun /ˈæbsəns/

Absence

缺席
Meaning
the state of being away from a place or person; lack or non-existence
Example
His absence from the meeting was noticed by everyone.
他缺席的会议被大家注意到了。
C2 adjective /ˌæpəˈplɛktɪk/

apoplectic

愤怒的
Meaning
Extremely angry; furious.
Example
He was apoplectic when he heard about the unfair decision.
当他听到关于不公正决定的消息时，他愤怒得几乎要爆炸。
B1 noun /ˈeə.rə.pleɪn/

Aeroplane

飞机
Meaning
a powered flying vehicle with fixed wings and a weight greater than that of the air it displaces
Example
The aeroplane took off smoothly from the airport runway.
飞机从机场跑道平稳起飞。
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 /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。
C1 adverb /ɔːˈtɒnəməsli/

autonomously

自动地
Meaning
In an independent or self-governing manner.
Example
The robot can operate autonomously without human intervention.
机器人可以在没有人工干预的情况下自动工作。
B2 adjective; verb (past/participle) /əˈʃʊrd/

assured

确信的；有把握的
Meaning
confident and certain; guaranteed or made certain
Example
She felt assured that everything would work out.
她确信一切都会顺利。
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。
C1 verb /əˈtɛst/

attest

证实
Meaning
To provide or serve as clear evidence of; to confirm or certify the truth of something.
Example
The witness attested to the accuracy of the report.
证人证明报告的准确性。
C2 noun /əˈplɒm/

aplomb

Meaning
Complete and confident self-assurance or poise.
Example
She handled the difficult questions with aplomb.
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。
A2 conjunction /ɔːlˈðoʊ/

although

尽管
Meaning
in spite of the fact that; even though
Example
Although it was raining, they went for a walk.
尽管下雨，他们还是去散步了。
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。
C1 noun /ˌæmplɪfɪˈkeɪʃən/

amplification

放大
Meaning
the act or process of making something stronger, louder, or more intense; an expansion or elaboration of details
Example
The microphone provides amplification of the speaker’s voice.
麦克风对说话者的声音起到放大作用。
C1 noun /ˈæptɪˌtjuːd/

aptitude

能力
Meaning
a natural ability or talent to do something well
Example
She has a strong aptitude for learning new languages.
她在学习新语言方面有很强的能力。
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。
C1 adjective /æmˈfɪb.i.əs/

Amphibious

两栖动物
Meaning
able to live both on land and in water; suitable for both land and water operations
Example
The amphibious vehicle can travel on both land and water.
两栖车能够在陆地和水中行驶。
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 adjective ˌæs.trəˈnɒm.ɪ.kəl

astronomical

天文学的
Meaning
Relating to astronomy; extremely large in amount or extent.
Example
The astronomical price reflects its exclusivity.
天文学的价格反映了它的独特性。
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。
A1 determiner, pronoun, adverb /ɔːl/

all

所有
Meaning
the whole quantity or extent of something; every one of something
Example
She spent all her money on books.
她把所有的钱都花在书上。
B2 noun əˈbʌndəns

abundance

丰富
Meaning
A very large quantity of something; plenty
Example
The abundance of vegetables in winter is remarkable.
冬天蔬菜的丰富程度令人惊讶。
A1 verb /æd/

add

添加
Meaning
to join something to something else; to include
Example
Please add sugar to my coffee.
请在我的咖啡里加糖。
A2 noun /əˈpɪə.rəns/

Appearance

外观; 出现; 显示
Meaning
the way that someone or something looks; an act of performing or participating in a public event
Example
Her appearance at the event surprised everyone.
她在活动中的出现让所有人都感到惊讶。
B2 noun ˈæt.rɪ.bjuːt

attribute

属性
Meaning
A quality or feature regarded as a characteristic or inherent part of someone or something.
Example
An important attribute of wood is its flexibility.
木材的一个重要属性是它的灵活性。
C1 adjective /ˈæʃən/

ashen

苍白的
Meaning
Very pale in appearance, often due to shock, fear, or illness.
Example
His face turned ashen when he heard the terrible news.
当他听到可怕的消息时，他的脸变得苍白。
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。
B1 noun /ˈæmətər/

amateur

业余
Meaning
A person who engages in a pursuit, especially a sport or art, on an unpaid basis.
Example
The painting looked impressive, even though it was done by an amateur.
这幅画看起来很震撼，尽管它是由一个业余爱好者完成的。
C1 noun /ˈɑːrməri/

armory

军械库
Meaning
A place where weapons are stored; a supply of resources or skills.
Example
The soldiers kept their weapons in the armory.
士兵们把武器存放在军械库里。
B1 noun /ɑːrmz/

Arms

武器
Meaning
weapons and ammunition; firearms
Example
The soldiers carried their arms into battle.
士兵们带着他们的武器进入战斗。
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。
B2 adjective /əbˈsɜːrd/

absurd

荒谬的, 不合理的
Meaning
wildly unreasonable, illogical, or inappropriate
Example
It is absurd to think that the earth is flat.
认为地球是平的，这太荒谬了。
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。
C1 verb ˌæs.ɚˈteɪn

ascertain

核实
Meaning
To find out or discover something with certainty; to verify.
Example
The police tried to ascertain the cause of the accident.
警方试图核实事故的原因。