rumor
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B2 noun /ˈruːmər/

rumor

谣言
Meaning
a currently circulating story or report of uncertain or doubtful truth.
Example
There’s a rumor that the company will merge next year.
有传闻说公司明年将合并。
C1 noun /woʊ/

woe

悲伤
Meaning
great sorrow, distress, or trouble
Example
Her heart was filled with woe after hearing the sad news.
她在听到悲伤的消息后，心中充满了悲伤。
B1 noun /ˈen.tri/

Entry

入口; 注册
Meaning
an act of going or coming in; an item written or printed in a record
Example
His entry into the competition was submitted just before the deadline.
他在截止日期前提交了参加比赛的入口。
B2 noun /ɡlɪmps/

Glimpse

一瞥;
Meaning
a momentary or partial view; a brief look or sight of something
Example
Through the window, I caught a glimpse of the beautiful garden behind the house.
透过窗户，我瞥见了房子后面美丽的花园。
C2 verb /sweɪð/

swathe

Meaning
To wrap or cover closely or completely.
Example
She swathed the baby in a soft blanket.
A2 noun, verb /ˈmætər/

matter

问题 / 重要
Meaning
A subject or situation under consideration; to be important.
Example
It doesn’t matter what others think.
不在乎别人怎么想。
C1 adjective /ˈsɪnləs/

Sinless

无罪; 天真; 纯洁
Meaning
free from sin; pure and innocent; without moral fault
Example
The innocent child appeared sinless in her pure white dress.
那天真的孩子穿着纯白色的裙子，看起来毫无罪。
C2 adjective /spraɪ/

spry

灵活
Meaning
active and lively, especially in old age
Example
The spry grandmother surprised everyone with her quick dance steps.
灵活的奶奶用快速的舞步让所有人都惊讶不已。
C1 noun /ˈtʃɪz.əl/

Chisel

凿子
Meaning
a tool with a sharp flat edge used for cutting or shaping wood, stone, or metal
Example
The carpenter used a chisel to carve the wood.
木匠用凿子雕刻木头。
C2 noun /ˌbrɪɡ.əˈdɪər/

brigadier

布里加迪尔
Meaning
A military officer rank, usually commanding a brigade.
Example
The brigadier inspected the troops before the parade.
布里加迪尔在游行前检查了部队。
C2 noun /mɪˈtɒnɪmi/

metonymy

借代
Meaning
A figure of speech in which one word or phrase is substituted with another closely related word or concept.
Example
In the phrase 'the crown will decide,' 'crown' is a metonymy for monarchy.
在短语 '王冠将决定' 中，'王冠' 是君主制的借代。
B2 adverb /səˈpəʊzɪdli/

supposedly

据说
Meaning
used to show that something is believed or claimed to be true, though it may not be
Example
He is supposedly the best player on the team.
据说他是队里最好的球员。
C1 adjective /ɪˈmuː.və.bəl/

immovable

不可移动
Meaning
Not able to be moved; fixed in position.
Example
Immovable barriers prevent change.
不可移动的障碍阻止了改变。
A2 noun ˈkwɒl.ɪ.ti

quality

质量
Meaning
The standard of something as measured against other things of a similar kind; the degree of excellence of something.
Example
Quality assurance is vital in medical education.
质量保证在医学教育中至关重要。
C2 adjective /ˈkoʊməˌtoʊs/

comatose

昏迷的
Meaning
In a state of deep unconsciousness, resembling or related to coma.
Example
The comatose patient was kept under constant observation.
昏迷的病人被持续观察。
C1 noun /ɪmˌpɒsəˈbɪlɪti/

impossibility

不可能性
Meaning
the state or fact of being impossible; something that cannot be done or achieved
Example
Finishing the project in one day was an impossibility.
在一天内完成这个项目是不可能的。
C2 adjective /ˌɪrɛvəˈrɛnʃəl/

irreverential

不敬的
Meaning
Showing a lack of respect for things that are generally taken seriously.
Example
His irreverential humor often shocked traditional audiences.
他的不敬幽默常常让传统观众感到震惊。
B1 adjective /ˈblʌdi/

bloody

血腥
Meaning
covered in, involving, or containing blood; also used informally for emphasis in British English.
Example
The soldier returned from battle with a bloody arm.
士兵带着血腥的手臂从战斗中归来。
B2 noun /ˌɔː.ri.enˈteɪ.ʃən/

orientation

定向
Meaning
the process of becoming familiar with a new situation or environment
Example
The company provides an orientation for all new employees.
公司为所有新员工提供定向培训。
C1 noun /ˌtrɛpɪˈdeɪʃən/

trepidation

忧虑
Meaning
a feeling of fear or anxiety about something that may happen
Example
She opened the letter with some trepidation.
她带着一些忧虑打开了信件。
B2 noun /ˈrɛzərvwɑːr/

reservoir

水库
Meaning
A large natural or artificial lake used as a source of water supply.
Example
The city built a new reservoir to ensure enough drinking water for its residents.
这座城市建造了一个新的水库，以确保为居民提供足够的饮用水。
A2 verb /teɪk ɒf/

take off

起飞; 脱下
Meaning
to remove something; to leave the ground and begin flying (airplane); to suddenly become successful or popular
Example
The airplane will take off in ten minutes.
飞机将在十分钟后起飞。
B2 noun /tækˈseɪʃən/

taxation

税收
Meaning
The system of imposing and collecting taxes.
Example
Taxation is necessary for funding public services.
税收对于资助公共服务是必要的。
C1 noun /ɡæf/

gaffe

失误
Meaning
An unintentional act or remark causing embarrassment; a blunder.
Example
The politician's gaffe quickly spread on social media.
政治家的失误迅速在社交媒体上传播。
B1 adjective ɪnˈdʌs.tri.əl

industrial

工业的
Meaning
Relating to or characterized by industry.
Example
Industrial sectors boost exports.
工业部门促进出口。
B2 noun /əˈvɔɪdəns/

avoidance

回避
Meaning
the act of staying away from something; deliberate prevention of contact or confrontation
Example
Avoidance of difficult conversations can create bigger problems later.
回避困难的对话可能会在以后造成更大的问题。
B1 noun /pɜːrs/

purse

钱包
Meaning
a small bag used by women to carry money and personal items
Example
She kept her wallet in her purse.
她把钱包放进了她的手袋里。
C1 noun /ˌdɪstɪˈleɪʃən/

distillation

蒸馏
Meaning
The process of purifying a liquid by heating and cooling; the extraction of the essential meaning.
Example
Distillation is commonly used to produce alcoholic beverages.
蒸馏通常用于生产酒精饮料。
C2 noun /ˌpɛrəɡrɪˈneɪʃən/

peregrination

朝圣之旅
Meaning
A long journey or wandering, especially on foot.
Example
Their peregrination across Asia lasted two years.
他们横跨亚洲的朝圣之旅持续了两年。
B2 adjective /ˈjuːθfəl/

Youthful

年轻的; 充满活力和新鲜感
Meaning
having the qualities of youth; energetic and fresh
Example
Her youthful energy impressed everyone at work.
她的青春活力给工作上的每个人留下了深刻印象。
B2 adjective /dɪˈpɛndəbl/

dependable

可靠的
Meaning
able to be trusted or relied on; consistently reliable
Example
She is a dependable colleague who always meets deadlines.
她是一位可靠的同事，总是按时完成任务。
B1 noun, verb /ˈɡrædʒuət/ (noun), /ˈɡrædʒueɪt/ (verb)

graduate

毕业生
Meaning
As a noun: a person who has completed a course of study; As a verb: to complete a course of study successfully.
Example
She will graduate from university next year.
她将在明年毕业。
C1 noun /ˌdɛsɪˈmeɪʃən/

decimation

大规模摧毁
Meaning
The act of destroying or killing a large proportion of something.
Example
The decimation of the city left thousands homeless.
城市的毁灭使成千上万的人无家可归。
B1 noun /ˈɑː.lɪv/

Olive

橄榄
Meaning
a small oval fruit with a hard pit, typically green or black, used for eating or making oil
Example
Olive oil is considered one of the healthiest cooking oils available.
橄榄油被认为是最健康的烹饪油之一。
B2 noun /ˈɑːrtɪˌfækt/

artifact

文物
Meaning
an object made by humans, typically of historical or cultural interest
Example
The museum displayed ancient artifacts from Egypt.
博物馆展示了来自埃及的古代文物。
B2 noun /ˈspɛʃəlti/

specialty

专长
Meaning
a particular area of study, work, or interest; something in which a person or place excels
Example
Her specialty is pediatric medicine.
她的专业是儿科医学。
C1 adjective /ˌfɪz.i.əˈlɒdʒ.ɪ.kəl/

physiological

与身体功能和活动相关
Meaning
Relating to bodily functions and activities.
Example
Exercise improves physiological functions of the body.
运动改善身体的生理功能。
B2 noun /ˈrɪdəl/

Riddle

谜语
Meaning
a question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning; a puzzle
Example
The ancient riddle stumped all the scholars for years.
古老的谜语让所有学者困扰了多年。
C2 noun /kəˈmɛstɪbəl/

comestible

可食用的
Meaning
An item of food that can be eaten.
Example
The picnic basket was full of delicious comestibles.
野餐篮子里装满了美味的可食用物品。
B2 adjective /ˈstʌdid/

studied

深思熟虑
Meaning
carefully considered, deliberate, or planned
Example
Her response was calm and studied, not impulsive.
她的回答冷静而深思熟虑，非冲动。
B2 noun /ɪnˈsɪstəns/

insistence

坚持
Meaning
the act of demanding something firmly or repeatedly
Example
At his insistence, we stayed longer.
在他的坚持下，我们待得更久。
B1 noun /muːd/

Mood

心情; 情绪;
Meaning
a temporary state of mind or feeling; atmosphere
Example
She was in a good mood after receiving the news.
她在收到消息后心情很好。
C1 adjective /ɪnˈɔːdəbl/

inaudible

听不见的
Meaning
Unable to be heard.
Example
Her voice was almost inaudible over the noise.
她的声音几乎在噪音中听不见。
A2 adverb /ˈbædli/

badly

糟糕
Meaning
in a way that is not good; poorly or severely
Example
He performed badly in the exam.
他在考试中表现得很差。
B2 verb, noun, adjective /prɑːmpt/

prompt

促使 / 快速
Meaning
To cause someone to take action; done without delay.
Example
His speech prompted the audience to ask questions.
他的演讲促使观众提问。
C1 adjective /ˈplaɪəbəl/

pliable

柔韧的
Meaning
easily bent or flexible; adaptable
Example
The metal is pliable enough to be shaped into jewelry.
金属足够柔韧，可以被塑造成珠宝。
B2 noun /skʌl/

Skull

头骨
Meaning
the bony framework of the head that protects the brain
Example
The doctor examined the skull X-ray carefully.
医生仔细检查了头骨的X光片。
C2 adjective /ɪnˈkɒŋɡruənt/

incongruent

不一致的
Meaning
Not in harmony or keeping with the surroundings or other aspects.
Example
His casual outfit looked incongruent at the formal dinner.
他穿的休闲装在正式晚宴上显得不一致。
C1 noun /səˈbraɪəti/

sobriety

清醒
Meaning
the state of being sober; self-restraint and seriousness
Example
He has maintained his sobriety for five years.
他已经保持清醒五年了。
C1 adjective /ˌdaɪəˈbɒlɪkəl/

diabolical

恶魔般的
Meaning
Wicked, cruel, or outrageously bad; resembling the devil.
Example
The dictator’s diabolical rule brought misery to the nation.
独裁者的恶魔般统治给国家带来了苦难。
B2 noun /djʊˈreɪʃən/

duration

持续时间
Meaning
the length of time that something continues
Example
The meeting lasted for the duration of two hours.
会议持续了两个小时。
C1 noun /ˈspɛktər/

specter

幽灵
Meaning
A ghost or spirit; something that causes fear or dread.
Example
The specter of war still haunts the region.
战争的幽灵仍然在该地区徘徊。
C1 adjective /ˈɛm.ɪ.nənt/

eminent

杰出
Meaning
Famous and respected within a particular sphere or profession.
Example
He is an eminent scientist known for groundbreaking research.
他是一个杰出的科学家，以开创性的研究而闻名。
A2 noun, verb /pəʊst/

post

邮寄
Meaning
a job or position, or to send something by mail
Example
She posted a letter to her friend yesterday.
她昨天给她的朋友邮寄了一封信。
C1 adjective /pərˈsɛptɪv/

perceptive

幸福
Meaning
Having or showing keen insight, understanding, or awareness.
Example
She is very perceptive and quickly notices when something is wrong.
她在获得奖项时无法隐藏她的快乐。
B2 noun /ˌdʒʌstɪfɪˈkeɪʃən/

justification

辩解
Meaning
a reason, explanation, or excuse that shows something is right or reasonable
Example
There is no justification for such rude behavior.
对这种粗鲁行为没有辩解。
B2 noun ɪnˈɡeɪdʒɪŋ ˈlɜːrnɪŋ ɪkˈspɪəriənsɪz

engaging learning experiences

引人入胜的学习体验
Meaning
Interactive and immersive educational activities that capture students' attention and actively involve them in the learning process.
Example
Digital tools create engaging learning experiences.
数字工具创造引人入胜的学习体验。
C2 noun /sfɪˈrɒmɪtər/

spherometer

球形仪
Meaning
An instrument used for measuring the curvature of spherical surfaces.
Example
The scientist used a spherometer to measure the lens curvature.
科学家使用了一个球形仪来测量透镜的曲率。
C2 noun /ˈlæɡ.ərd/

Laggard

进展缓慢并落后于其他人的人
Meaning
a person who makes slow progress and falls behind others; someone who is slow to act
Example
The laggard student finally submitted his assignment after the deadline.
那位落后的学生终于在截止日期后提交了作业。
C1 noun /ˈɛləkwəns/

eloquence

口才
Meaning
Fluent or persuasive speaking or writing.
Example
His eloquence in speech won him great respect.
他在演讲中的口才为他赢得了极大的尊重。
C2 adjective /ˌɪntəˈrɒɡətəri/

interrogatory

询问的
Meaning
expressed in the form of a question; relating to questioning
Example
The lawyer’s interrogatory tone made the witness uncomfortable.
律师的询问语气让证人感到不舒服。
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。
C1 verb /ˈplʌm.ɪt/

plummet

快速垂直下落
Meaning
to fall straight down at high speed
Example
Stock prices plummeted after the sudden market crash.
股票价格在突如其来的市场崩盘后急剧下跌。
C2 adjective /ˈtaɪmwɔːrn/

timeworn

被时间磨损
Meaning
Worn or impaired by age; old and used many times.
Example
The timeworn house carried a sense of history and nostalgia.
被时间磨损的房子带着历史和怀旧的感觉。
B2 noun ˌfoʊ.t̬oʊˈsɪn.θə.sɪs

photosynthesis

光合作用
Meaning
The process by which green plants use sunlight to synthesize foods from carbon dioxide and water.
Example
Plants depend on photosynthesis for survival.
植物依靠光合作用来生存。
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 verb /ˈsʌli/

sully

玷污
Meaning
to damage the purity, integrity, or reputation of something
Example
The scandal sullied the politician’s reputation.
丑闻玷污了政治家的声誉。
B1 noun /ˌpɒp.jəˈlær.ə.ti/

Popularity

受欢迎程度
Meaning
the state of being liked, admired, or supported by many people
Example
The singer's popularity has grown rapidly this year.
歌手的流行度今年快速增长。
B2 noun /ˈmʊzlɪm/

muslim

穆斯林
Meaning
a follower of Islam
Example
He is a devout Muslim.
他是一个虔诚的穆斯林。
A2 noun /ˈθɪŋkɪŋ/

thinking

思考
Meaning
the process of considering or reasoning about something
Example
Her thinking was clear and precise.
她的思考清晰而准确。
B2 noun /ˈaɪ.dəl/

Idol

偶像; 受人崇拜的人
Meaning
an image or representation of a god used as an object of worship; a person who is greatly admired
Example
The singer became a teenage idol after her hit song topped the charts worldwide.
这位歌手在她的热门歌曲登顶全球排行榜后成为了青少年偶像。
C1 verb /prəˈlɪf.ə.reɪt/

proliferate

扩散
Meaning
To increase rapidly in numbers; to grow or spread quickly and extensively.
Example
Startups tend to proliferate in a thriving economy.
初创公司在繁荣的经济中往往会迅速扩展。
B2 noun /ˈbɒtəni/

botany

植物学
Meaning
the scientific study of plants
Example
She is studying botany at the university.
她在大学里学习植物学。
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。
C1 verb /ˈoʊvərˌhɔːl/

overhaul

全面改革
Meaning
to examine thoroughly and repair or improve something that is worn or ineffective
Example
The company decided to overhaul its outdated computer system.
公司决定彻底改革其过时的计算机系统。
B1 noun ˈɪn.də.stri

industry

工业
Meaning
Economic activity concerned with the processing of raw materials and manufacture of goods in factories.
Example
The industry focuses on luxury experiences.
该工业专注于奢侈品体验。
B1 adjective /bɔɪld/

Boiled

煮熟的
Meaning
cooked in boiling water
Example
She served boiled eggs for breakfast.
她早餐时提供了煮鸡蛋。
C2 noun /ɪnˈtɒksɪkənt/

intoxicant

醉品
Meaning
a substance, especially alcohol or a drug, that causes intoxication
Example
Alcohol is the most commonly used intoxicant in many cultures.
酒精是许多文化中最常用的醉品。
C2 verb /ɪnˈræptʃər/

enrapture

使着迷
Meaning
To fill someone with great delight or joy.
Example
The beautiful music enraptured the audience.
美丽的音乐让观众陶醉。
B2 adjective /ˈɪnfɪnɪt/

infinite

无限
Meaning
limitless or endless in space, extent, or number
Example
The universe is often described as infinite.
宇宙常被描述为无限的。
B2 noun /ɡʌm/

Gum

牙龈; 粘稠物质
Meaning
the firm flesh that surrounds the roots of the teeth; a viscous secretion
Example
The dentist checked her gum for any signs of disease.
牙医检查了她的牙龈，寻找是否有疾病迹象。
C1 noun /dɪˈluːʒən/

delusion

错觉
Meaning
A false belief or impression maintained despite being contradicted by reality.
Example
He lived under the delusion that he was invincible.
他生活在他自己是不可战胜的错觉中。
B2 verb kəˈlaɪd

collide

碰撞, 撞击
Meaning
Hit with force when moving; come into conflict or opposition.
Example
The two cars collided at the intersection.
两辆车在交叉口相撞。
C1 adjective /ˈen.vi.ə.bəl/

Enviable

值得羡慕的
Meaning
causing envy; desirable
Example
Her success was enviable among her peers.
她的成功在同事中是值得羡慕的。
C2 adjective /ˈwɪloʊi/

willowy

优雅、苗条且柔韧，如同柳树
Meaning
Gracefully tall, slender, and flexible, like a willow tree.
Example
She moved with a willowy elegance across the stage.
她在舞台上优雅地移动，像柳树一样。
C1 adjective /ˈpʊʃi/

pushy

强迫的
Meaning
excessively assertive or aggressive, often annoyingly so
Example
The salesperson was too pushy, which drove customers away.
销售员太强迫了，导致顾客远离。
B2 noun /kənˈspɪrəsi/

conspiracy

阴谋
Meaning
A secret plan by a group to do something unlawful or harmful.
Example
The police uncovered a conspiracy to overthrow the government.
警方揭露了一项推翻政府的阴谋。
A1 verb, noun /kraɪ/

cry

Meaning
To shed tears as an expression of emotion such as sadness or pain; also a loud call or shout.
Example
The baby began to cry when she was hungry.
A2 noun ˈhɪs.tər.i

History

历史
Meaning
The study of past events; a chronological record of events and heritage.
Example
The history of ancient civilizations fascinates scholars.
古代文明的历史吸引着学者。
B2 noun rɪˈpʌb.lɪk

republic

共和国
Meaning
A state in which supreme power is held by the people and their elected representatives, with an elected or nominated president rather than a monarch.
Example
A republic is governed by representatives of the people.
共和国由人民的代表治理。
C1 adjective /ɪkˈsiːdɪŋ/

Exceeding

过度的; 超越的
Meaning
going beyond; surpassing; extremely
Example
The project was completed with exceeding excellence.
该项目以极高的卓越完成。
A2 interjection /hʌ/

huh

你说什么?
Meaning
used to express confusion, surprise, or that you did not hear something
Example
Huh? What did you say?
哈？你说什么?
A2 noun /skɜːrt/

Skirt

裙子
Meaning
a garment that hangs from the waist and covers part or all of the legs
Example
She chose a blue skirt to match her blouse.
她选择了一条蓝色的裙子，以配合她的衬衫。
C2 noun /sɑːrˈkɒfəɡəs/

sarcophagus

石棺
Meaning
A stone coffin, often decorated, used in ancient times.
Example
The museum displayed a beautifully carved sarcophagus from ancient Egypt.
博物馆展示了来自古埃及的美丽雕刻的石棺。
C1 verb /kənˈdəʊn/

condone

宽容
Meaning
To accept or allow behavior that is morally wrong or offensive.
Example
The manager refused to condone harassment in the workplace.
经理拒绝在工作场所宽容骚扰。
C1 verb /ˈpɜːrkəleɪt/

percolate

Meaning
To filter gradually through a porous surface or substance; to spread slowly.
Example
The rainwater percolated through the soil into the groundwater.
C1 verb /ˈsɪvɪlaɪz/

civilize

使文明
Meaning
to bring a society or group to a more developed, organized, or socially acceptable state; to educate and refine behavior
Example
Education can help civilize communities by promoting shared values and respect.
教育可以通过促进共同价值观和尊重来使社区更加文明。
C2 verb /ˌdɛlɪˈkwɛs/

deliquesce

通过吸收空气中的水分变为液体
Meaning
to become liquid by absorbing moisture from the air
Example
The salt began to deliquesce after being left in the humid room.
盐开始在潮湿的房间里变成液体。
C1 verb /ˈkæptɪveɪt/

captivate

迷住，吸引
Meaning
to attract and hold the interest of; to charm or fascinate
Example
Her beautiful voice captivated the audience.
她美丽的声音迷住了观众。
C1 verb /jɜːrn/

yearn

渴望
Meaning
to have a deep longing or desire for something
Example
She yearned for her homeland after living abroad for years.
她在国外生活多年后，渴望着她的家乡。
C2 verb /kəˈlʌmnieɪt/

calumniate

诽谤
Meaning
To make false and damaging statements about someone; to slander.
Example
He was furious when he realized they had calumniated his reputation.
当他意识到他们已经毁坏了他的名声时，他非常生气。
B2 noun /məˈlɛəriə/

malaria

疟疾
Meaning
a serious infectious disease spread by mosquitoes, causing fever, chills, and sweating
Example
Malaria is a common disease in tropical regions.
疟疾在热带地区是一种常见疾病。
B2 noun /ɡler/

Glare

愤怒的或生气的凝视；强烈和刺眼的光线
Meaning
a fierce or angry stare; a strong and dazzling light
Example
The teacher's stern glare silenced the noisy students immediately.
老师严厉的目光立刻让吵闹的学生安静下来。
B2 adjective/noun /staʊt/

stout

强壮 / 粗壮
Meaning
Strong, thick, or heavily built; also a kind of dark beer
Example
The stout man lifted the heavy box with ease.
这个强壮的男人轻松地举起了沉重的箱子。
B2 noun /əˈsɛnt/

ascent

Meaning
The act of rising or climbing to a higher position or level.
Example
The climbers began their ascent to the mountain peak at dawn.
B2 verb /ˈwaɪdən/

widen

拓宽
Meaning
to make or become wider or broader
Example
They plan to widen the road next year.
他们计划在明年拓宽这条路。
B2 noun /ˈmɒlɪkjuːl/

molecule

分子
Meaning
The smallest unit of a chemical compound that retains its chemical properties.
Example
A water molecule is made up of two hydrogen atoms and one oxygen atom.
一个水分子由两个氢原子和一个氧原子组成。
B2 adjective /ˈvaɪtl/

vital

至关重要
Meaning
essential or necessary for life or success
Example
It's vital to stay hydrated during the summer.
在夏天保持水分非常重要。
B2 verb /ɪkˈspɛl/

expel

开除
Meaning
to officially force someone to leave a place or organization
Example
The student was expelled from school for misconduct.
这名学生因不良行为被学校开除。
C2 adjective /ˌɪrɪˈdjuːsəbl/

irreducible

不可约的
Meaning
impossible to reduce or simplify further
Example
The fraction 3/7 is irreducible.
分数 3/7 是不可约的。
C1 adjective /ˈɔː.də.bəl/

Audible

可听见的
Meaning
able to be heard; loud enough to hear
Example
The speaker's voice was barely audible from the back of the large hall.
演讲者的声音从大礼堂的后面几乎听不见。
C1 adverb /əˈfrɛʃ/

afresh

重新
Meaning
From the beginning, in a new way.
Example
After the failure, they started the project afresh.
在失败后，他们重新开始了这个项目。
B2 noun, verb /ˈædvɜːrt/

advert

Meaning
(noun) a notice or announcement in a public medium promoting a product, service, or event; (verb) to refer to something in speaking or writing
Example
The company placed an advert in the newspaper for the new position.
C1 adjective /ˈmɒsi/

Mossy

覆盖苔藓的；生苔的
Meaning
covered with moss; having moss growing on it
Example
The old tree trunk was mossy and covered with green vegetation.
这棵老树干上覆盖着苔藓，并且被绿色植物覆盖。
B2 adjective /ˈrændəm/

Random

随机
Meaning
without pattern or predetermined order; happening by chance
Example
She selected a random book from the library shelf.
她从书架上挑选了一本随机的书。
C1 verb /sərˈpæs/

surpass

超越
Meaning
to exceed or go beyond
Example
Her performance surpassed all expectations.
她的表现超出了所有预期。
C1 noun /ˈsɜːrtʃɑːrdʒ/

surcharge

附加费
Meaning
an additional charge or payment added to the usual cost
Example
The airline ticket had a fuel surcharge added to it.
机票上加收了燃油附加费。
C2 adjective /kənˈkɒmɪtənt/

concomitant

伴随的
Meaning
Naturally accompanying or associated with something.
Example
Increased stress is often concomitant with long working hours.
增加的压力通常与长时间的工作时间并存。
B2 adjective /ˈlɔːŋtaɪm/

longtime

长期的
Meaning
having existed or continued for a long time
Example
They are longtime friends who met in college.
他们是大学时认识的长期朋友。
B2 noun /ˌæbəˈlɪʃən/

abolition

废除
Meaning
the act of formally ending or eliminating a system, practice, or institution
Example
The abolition of slavery was a major milestone in human rights history.
废除奴隶制是人权历史上的一个重要里程碑。
B1 noun /ˈtʃæn.əl/

Channel

频道; 渠道; 途径;
Meaning
a television or radio station; a passage for water or other liquids; a means of communication
Example
The news channel provided live coverage of the important event.
新闻频道提供了该重要事件的现场直播报道。