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B2 adjective /əˈtʃiːvəbl/

achievable

可实现的
Meaning
Able to be brought about or reached successfully.
Example
Start with achievable steps to stay motivated.
从可实现的步骤开始，以保持动力。
B2 adjective /æbˈnɔːr.məl/

abnormal

异常的
Meaning
deviating from what is normal or usual, typically in a way that is undesirable
Example
The doctor noticed an abnormal growth in the patient’s lung.
医生注意到病人肺部出现了异常的生长。
C1 noun /ˈɑːr.tər.i/

Artery

动脉
Meaning
a blood vessel that carries blood away from the heart to other parts of the body
Example
The doctor checked the pulse in his artery.
医生检查了他动脉的脉搏。
B2 verb /əˈsend/

ascend

上升
Meaning
to go up or climb to a higher position; to rise
Example
The climbers will ascend the mountain at dawn.
登山者将在黎明时分爬上山。
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 /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。
B2 noun /æmˈbæsədər/

Ambassador

大使
Meaning
an accredited diplomat sent by a country as its official representative to a foreign country
Example
The ambassador met with government officials to discuss trade agreements.
大使与政府官员会面，讨论贸易协议。
B1 verb /əˈsɛs/

assess

评估
Meaning
to evaluate or estimate the nature, ability, or quality of something
Example
The teacher assessed the students' progress.
老师评估了学生的进展。
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 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。
B2 noun /ɑːrˈkeɪd/

arcade

游乐场
Meaning
a covered passage with arches along one or both sides; also a place with coin-operated games
Example
The children spent the afternoon playing games at the arcade.
孩子们在游戏中心度过了下午。
A2 adverb /ˈɔːlmoʊst/

almost

差不多
Meaning
very nearly, but not exactly or completely
Example
He almost missed the train.
他差点错过了火车。
C2 adjective /ˌæntɪməˈrɪdiən/

antemeridian

中午前的时间
Meaning
Relating to the time before noon; occurring in the morning.
Example
She scheduled all her important meetings during the antemeridian hours.
她安排了所有重要的会议在中午前的时间。
A1 preposition, conjunction, adverb /ˈæftər/

after

之后
Meaning
in the time following an event or another action
Example
We went for ice cream after the movie.
我们看完电影后去吃冰淇淋。
B2 adverb /əˈtræktɪvli/

attractively

有吸引力地
Meaning
in a pleasing or appealing way; in a manner that draws interest or admiration
Example
The room was attractively decorated with soft lights and plants.
这个房间用柔和的灯光和植物装饰得很有吸引力。
B1 adjective /ˈɔːkwəd/

awkward

尴尬
Meaning
causing or feeling embarrassment; difficult to deal with
Example
There was an awkward silence after his joke.
他的笑话之后，出现了尴尬的沉默。
C1 adjective /əˈnɒmələs/

anomalous

异常
Meaning
deviating from what is standard, normal, or expected
Example
Scientists observed an anomalous result during the experiment.
科学家在实验中观察到了一个异常的结果。
A2 noun /ˈæθliːt/

athlete

运动员
Meaning
a person who is trained or skilled in physical exercises, sports, or games requiring strength, agility, or stamina
Example
The athlete trained hard for the upcoming Olympic Games.
运动员为即将到来的奥林匹克运动会进行了艰苦训练。
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。
B1 adjective /əˈfɔːdəbl/

affordable

实惠
Meaning
inexpensive and within one's financial means
Example
This restaurant offers affordable meals for families.
这家餐厅为家庭提供实惠的餐点。
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 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。
B1 noun ɔːlˈtɜːrnətɪv

alternative

替代品
Meaning
(Of one or more things) available as another possibility or choice.
Example
Finding an alternative to plastic is essential.
找到塑料的替代品是至关重要的。
C1 noun /ˈæmnəsti/

amnesty

赦免
Meaning
An official pardon granted to people who have been convicted of political offenses.
Example
The government announced an amnesty for all political prisoners.
政府宣布了对所有政治犯的赦免。
C1 noun /ˈælkoʊv/

alcove

壁龛
Meaning
A small recessed section of a room or a nook.
Example
She placed a reading chair in the alcove near the window.
她在靠窗的壁龛里放了一把阅读椅。
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。
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。
B1 verb /əˈdʒʌst/

adjust

调整
Meaning
to change something slightly to make it more suitable or effective
Example
She adjusted the mirror to see the road clearly.
她调整了镜子以清晰地看见路。
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 /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。
B1 adjective /ˈæktʃuəl/

actual

实际的
Meaning
real and existing, not just imagined or supposed
Example
The actual cost was higher than expected.
实际成本高于预期。
C1 adjective /ˈæmərəs/

amorous

多情的
Meaning
Showing, feeling, or relating to romantic love or desire.
Example
He sent her an amorous letter filled with declarations of love.
他给她写了一封充满爱情宣言的情书。
B1 noun /əˈsaɪnmənt/

assignment

任务
Meaning
a task or piece of work given to someone as part of their duties
Example
The students completed their homework assignment on time.
学生们按时完成了他们的家庭作业任务。
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。
C2 verb /ˈæntɪkweɪt/

antiquate

过时
Meaning
To make something old-fashioned or obsolete.
Example
The rise of digital cameras antiquated traditional film photography.
数字相机的崛起使传统胶片摄影过时。
C2 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.
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。
B2 noun ˈæt.rɪ.bjuːts

attributes

属性
Meaning
A quality or feature regarded as a characteristic or inherent part of someone or something.
Example
Advanced crops possess beneficial attributes.
先进的作物具有有益的属性。
B2 adjective /əˈpiː.lɪŋ/

Appealing

吸引人的; 有趣的; 令人愉快的
Meaning
attractive; interesting; pleasing
Example
The colorful garden looks very appealing to visitors.
五颜六色的花园对游客非常吸引人。
C1 noun /ˈæbət/

abbot

院长
Meaning
The head of a monastery for monks.
Example
The abbot welcomed the visitors to the monastery.
院长欢迎游客来到修道院。
B2 adjective /əˈsɜːr.tɪv/

Assertive

果断的; 自信的
Meaning
confident and forceful; having a strong personality
Example
She is very assertive when speaking in meetings.
她在会议中发言时非常果断。
C1 noun /ˈæntlɚ/

antler

鹿角
Meaning
The branched horns on the head of a deer or similar animal, usually shed and regrown annually.
Example
The deer’s antlers grew larger each year.
鹿角每年都会变得更大。
B2 verb /ˈɔːltər/

alter

改变
Meaning
to change or modify something slightly but significantly
Example
She decided to alter her dress to make it fit better.
她决定改变她的裙子，让它更合身。
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 adjective /əˈtrəʊ.ʃəs/

Atrocious

可怕的; 极其糟糕或令人不悦的
Meaning
horrifyingly wicked; extremely bad or unpleasant
Example
The conditions in the prison were atrocious.
监狱的条件非常糟糕。
A2 adjective /ˈɔːfəl/

awful

糟糕
Meaning
very bad or unpleasant
Example
The weather was awful during our trip.
我们旅行时天气很糟糕。
C2 noun /ˈeɪ.viˌɛr.i/

aviary

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

anterior

前部的
Meaning
Situated at or toward the front; coming before in position or time.
Example
The anterior part of the brain controls logical thinking.
大脑的前部控制逻辑思维。
B2 adjective /əˈkaʊntəbl/

accountable

负责
Meaning
Required or expected to justify actions or decisions; responsible.
Example
Staying accountable helps reduce delays.
保持负责有助于减少延迟。
C1 noun /əˈflɪkʃən/

affliction

痛苦
Meaning
a state of pain, suffering, or distress
Example
Poverty is a common affliction in many parts of the world.
贫困是世界许多地方的常见痛苦。
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。
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。
B2 noun ədˈvɑːns.mənt

advancement

进步
Meaning
The process of promoting or moving forward; development or improvement in a particular area.
Example
Technological advancement shapes the future.
技术进步塑造了未来。
C2 verb /əˈvɜːr/

aver

坚称
Meaning
to state or assert something confidently and strongly
Example
She averred that she was innocent.
她坚称她是无辜的。
C2 noun /ˈæk.rɪ.moʊ.ni/

acrimony

Meaning
Bitterness and anger, especially in speech or behavior.
Example
The divorce was filled with acrimony and disputes.
B2 noun /ˌæl.əˈkeɪ.ʃən/

allocation

分配
Meaning
The action or process of distributing resources or duties for a particular purpose.
Example
Budget allocation for education must be increased.
教育预算的分配必须增加。
C2 noun /ˈiːɒn/ or /ˈiːən/

aeon

Meaning
An indefinitely long period of time; an age or eternity.
Example
Dinosaurs roamed the Earth millions of aeons ago.
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。
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。
B1 adverb /ˈæŋɡrɪli/

angrily

愤怒地
Meaning
in a manner showing anger or strong displeasure
Example
She spoke angrily when she heard the news.
她听到这个消息后愤怒地说话。
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。
B2 noun /əˈsɜːʃən/

assertion

断言
Meaning
a confident and forceful statement of fact or belief
Example
Her assertion that she was right was met with silence.
她的断言她是对的遭遇了沉默。
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。
C2 adjective /ˈæʒər/

azure

蔚蓝
Meaning
A bright blue color like that of a clear sky.
Example
The clear sky was painted in a deep shade of azure.
清澈的天空被涂成了深深的蔚蓝色。
A2 noun /æd/

ad

广告
Meaning
a notice or announcement in a public medium promoting a product, service, or event
Example
The company released a new ad for their smartphone.
公司发布了他们智能手机的新广告。
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。
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。
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 /əˌpɒk.əˈlɪp.tɪk/

apocalyptic

末日的
Meaning
Describing the end of the world, or something catastrophic and disastrous.
Example
The movie depicts an apocalyptic future after a nuclear war.
这部电影描绘了核战争后的末日未来。
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。
C2 noun /ˈædʒ.ə.tənt/

Adjutant

阿金顿鹳
Meaning
a large water bird with long legs and neck, also known as adjutant stork
Example
The adjutant stork stood motionless in the shallow water.
那只阿金顿鹳站在浅水中不动。
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。
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。
B2 adjective /ˈædvɜːrs/

Adverse

不利的; 负面的; 有害的
Meaning
harmful; unfavorable; opposing; negative
Example
The adverse weather conditions forced them to cancel the event.
恶劣的天气条件迫使他们取消了活动。
B1 noun /əˈfek.ʃən/

Affection

喜爱; 爱情
Meaning
a feeling of liking or caring for someone or something
Example
She has deep affection for her grandmother.
她对她的祖母有着深深的喜爱。
B2 verb /ˈɔːdɪt/

audit

审计
Meaning
to examine and verify financial records or accounts officially
Example
The accountant will audit the company's books next month.
会计师将在下个月审计公司的账目。
C1 adjective /əˈbreɪsɪv/

abrasive

Meaning
harsh, rough, or capable of wearing down by rubbing
Example
His abrasive tone made everyone uncomfortable.
C1 noun /ˌætəˈʃeɪ/

attache

外交参赞
Meaning
A person officially assigned to the staff of a diplomatic mission, often with a specific area of responsibility.
Example
The cultural attache organized an art exhibition in the embassy.
文化参赞在大使馆组织了一场艺术展览。
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。
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。
B2 noun /ˌæljuˈmɪniəm/

aluminium

铝
Meaning
a lightweight, silvery-white metal used widely in manufacturing and packaging
Example
Aluminium is commonly used to make cans and aircraft parts.
铝常用于制造罐头和飞机部件。
C1 noun /ˌæn.ɪˈmɒs.ə.ti/

Animosity

敌意; 仇恨
Meaning
strong hostility or dislike; active hatred or ill will
Example
There was clear animosity between the two rival teams.
两支竞争队伍之间有明显的敌意。
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。
C1 adjective /ˈækʃənəbl̩/

actionable

可执行的
Meaning
Able to be acted on or giving sufficient reason for legal action.
Example
The lawyer confirmed that the evidence was actionable in court.
律师确认证据在法庭上是可执行的。
C2 noun ˌæb.əˈreɪ.ʃən

aberration

偏差, 异常, 偏离
Meaning
A departure from what is normal, usual, or expected, typically one that is unwelcome.
Example
The scientist dismissed the data as an aberration.
科学家将这些数据视为一个偏差。
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.
C1 adjective ˌæd.vɚˈser.i.əl

adversarial

对抗的
Meaning
Involving or characterized by conflict or opposition.
Example
The two companies have an adversarial relationship in the market.
这两家公司在市场上有对抗的关系。
B2 noun /ˈædvəkəsi/

advocacy

倡导
Meaning
public support for or recommendation of a particular cause or policy
Example
Her advocacy for children's rights earned her international recognition.
她对儿童权利的倡导为她赢得了国际认可。
C1 adjective /ˌeɪˈsɛkʃuəl/

asexual

无性
Meaning
Without sexual feelings, associations, or reproduction through sex.
Example
Many plants reproduce through asexual methods like budding or splitting.
许多植物通过无性繁殖方式，如发芽或分裂，进行繁殖。
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。
A1 noun /ˈɛər.pɔːrt/

airport

机场
Meaning
A place where airplanes take off and land, with buildings for passengers and cargo.
Example
We arrived at the airport two hours before the flight.
我们在航班起飞前两小时到达了机场。
B2 noun /ˈæplɪkənt/

applicant

申请者
Meaning
a person who applies for something, such as a job or a position
Example
The applicant was interviewed for the position.
申请者已被面试以获取该职位。
C2 adjective /ɔːˈɡʌst/

august

庄严
Meaning
Respected and impressive; inspiring reverence or admiration.
Example
The king entered the hall with an august presence.
国王以庄严的姿态走进了大厅。
B2 noun /əkˈnɒlɪdʒmənt/

acknowledgement

确认
Meaning
the act of recognizing or accepting something as true or valid; an expression of gratitude or recognition
Example
She received an acknowledgement for her contribution to the project.
她因对该项目的贡献而获得确认。
B2 adjective + noun əˈdæptɪv ˈfiːtʃərz

adaptive features

适应性特征
Meaning
Characteristics that help organisms adjust to their environment
Example
Plants' adaptive features help them grow in winter.
植物的适应性特征帮助它们在冬季生长。
C1 noun /ˈæltoʊ/

alto

高音 (成人歌唱声部)
Meaning
the second highest adult singing voice, between soprano and tenor
Example
She sang the alto part in the choir beautifully.
她在合唱团中美妙地唱着高音部分。
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。
A2 verb /əˈtend/

attend

参加
Meaning
to be present at; to give attention to; to take care of
Example
I will attend the conference next week.
我下周会参加会议。
B2 adverb /ˌælfəˈbɛtɪkli/

alphabetically

按字母顺序
Meaning
in the order of the letters of the alphabet
Example
The names are listed alphabetically in the register.
这些名字在登记册中按字母顺序排列。
B2 noun ˈæmbɪəns

ambience

氛围
Meaning
The character and atmosphere of a place.
Example
The restaurant's ambience was relaxed and inviting, perfect for a casual dinner.
餐厅的氛围轻松而宜人，非常适合休闲晚餐。
C1 adverb /əˈnjuː/

anew

重新
Meaning
In a new or different way; once more.
Example
After the failure, she decided to start her life anew.
失败后，她决定重新开始她的生活。
B2 noun /əˌveɪləˈbɪləti/

availability

可用性
Meaning
the state of being able to be used or obtained
Example
The availability of clean water is crucial for health.
清洁水的可用性对健康至关重要。
C1 noun /ˈæbsɛs/

abscess

脓肿
Meaning
A swollen area within body tissue containing pus, usually caused by infection.
Example
The dentist treated the abscess in his tooth.
牙医治疗了他牙齿上的脓肿。
B1 adjective /ədˈvænst/

advanced

先进
Meaning
highly developed or complex
Example
He is studying an advanced level of mathematics.
他正在学习高级数学。
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 noun /ænˈtɪlədʒi/

antilogy

矛盾论
Meaning
A contradiction in terms or ideas; inconsistency in speech or writing.
Example
The politician's statement was criticized for its antilogy.
这位政治家的声明因其矛盾论而受到批评。
B2 adverb /əˈten.tɪv.li/

Attentively

专心
Meaning
with careful attention; in a focused manner
Example
She listened attentively to her teacher's instructions.
她专心听取了老师的指示。
B1 noun /ˈɔː.θər/

Author

作者
Meaning
a person who writes books, articles, or other written work
Example
The author spent three years writing her bestselling novel.
作者花了三年时间写他的畅销书。
C1 verb /eɪl/

ail

生病
Meaning
to be ill or suffer from a physical or mental problem; to trouble or afflict
Example
She has been ailing since last winter.
她从去年冬天开始一直生病。
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 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 adjective /ˈæk.rɪd/

Acrid

刺鼻和不愉快
Meaning
having a strong, unpleasant, and sharp smell or taste
Example
The acrid smoke from the fire made everyone cough.
火灾的刺鼻烟雾让每个人都咳嗽。
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。
A2 verb əˈnaʊnst

announced

宣布
Meaning
To make a public and typically formal declaration about a fact, occurrence, or intention.
Example
The mission was announced publicly.
任务已公开宣布。
A1 adjective, adverb /əˈloʊn/

alone

孤单
Meaning
having no one else present; on one's own
Example
She prefers to live alone in her apartment.
她更喜欢独自一人在她的公寓里生活。
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.
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。
B2 noun əˈlaɪ.əns

alliance

联盟
Meaning
A union or association formed for mutual benefit, especially between countries or organizations.
Example
Global alliances promote environmental sustainability.
全球联盟促进环境可持续性。