tautology
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C2 noun /tɔːˈtɒlədʒi/

tautology

不必要的重复
Meaning
the unnecessary repetition of the same idea in different words
Example
The phrase 'it will happen or it won’t' is a tautology.
'它会发生，或者不会发生' 这句话就是一个套词论。
B2 verb /ˈʃɔːrtn/

shorten

缩短
Meaning
To make something shorter in length, duration, or extent
Example
She decided to shorten her speech to fit the time limit.
她决定缩短她的演讲以符合时间限制。
A2 noun ˈmɛdɪsɪn

medicine

药物
Meaning
A compound or preparation used for the treatment or prevention of disease.
Example
Modern medicine has made great strides in treating diseases.
现代医学在治疗疾病方面取得了重大进展。
C1 noun /ˈvɛriəns/

variance

方差
Meaning
the state of being different or inconsistent; in statistics, a measure of the spread between numbers
Example
There is a wide variance in students' performance levels.
学生的表现水平有很大的方差。
B2 verb /ɡruːm/

groom

Meaning
to clean, brush, and care for the appearance of someone or something
Example
She spends hours grooming her dog every week.
C2 verb /diːˈmoʊbəlaɪz/

demobilize

解散
Meaning
To release from military service or to disband troops.
Example
The government decided to demobilize the army after the war.
政府决定在战争后解散军队。
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。
C2 noun /ˌkæl.sɪ.fɪˈkeɪ.ʃən/

calcification

钙化
Meaning
The process of calcium accumulation in soil, making it hard.
Example
Calcification reduces soil permeability and affects crop growth.
钙化减少了土壤的渗透性，并影响作物的生长。
B2 adjective /ˈfeɪθ.fəl/

Faithful

忠诚的; 忠实的; 可靠的
Meaning
loyal and committed; reliable; true to one's beliefs
Example
She remained faithful to her principles throughout her career.
她在整个职业生涯中始终忠诚于自己的原则。
A2 adverb /ˈnɪərbaɪ/

Near-by

附近; 在附近
Meaning
close to; not far away; in the neighborhood
Example
There is a grocery store nearby.
附近有一家杂货店。
B1 adverb /ˈʌðərwaɪz/

Otherwise

否则; 不然
Meaning
in a different way; if not; or else; apart from that
Example
Study hard, otherwise you will fail the exam.
努力学习，否则你会考试失败。
C1 verb /vaʊtʃ/

vouch

保证
Meaning
to confirm or assert the truth or reliability of something
Example
I can vouch for his honesty.
我可以为他的诚实作证。
C1 noun /ˈmɒnəˌlɒɡ/

monologue

独白
Meaning
A long speech by one person, often in a play or performance.
Example
The actor delivered a powerful monologue on stage.
演员在舞台上做了一个强有力的独白。
C1 adjective /ˈʃɪvəlrəs/

chivalrous

骑士风范
Meaning
Behaving in a courteous, gallant, and honorable way, especially toward women.
Example
He was chivalrous, always opening doors for others.
他是骑士风范，总是为他人开门。
C2 verb /əˈpraɪz/

apprise

告知
Meaning
to inform or notify someone
Example
The manager will apprise the staff of the new policies.
经理将通知员工新的政策。
C1 noun /tækt/

tact

机智
Meaning
Adroitness and sensitivity in dealing with others or with difficult issues.
Example
He handled the situation with tact and professionalism.
他以机智和专业精神处理了这个情况。
C1 adjective /ˈpæl.ɪd/

Pallid

苍白，特别是因为健康不好；缺乏实质或活力
Meaning
pale, especially because of poor health; lacking substance or vitality
Example
His pallid complexion showed signs of illness.
他苍白的面色显示出生病的迹象。
C1 verb /ˈmæsəkər/

massacre

大屠杀
Meaning
to kill a large number of people brutally; to defeat decisively
Example
The army massacred the innocent civilians.
军队大屠杀了无辜的平民。
B2 noun /ˈɒt.ər/

Otter

水獺
Meaning
a mammal with webbed feet that lives near water and feeds on fish
Example
The playful otter swam gracefully in the river.
顽皮的水獺优雅地在河里游泳。
C2 adjective səˈluː.bri.əs

salubrious

有益健康的
Meaning
Health-giving; healthy; promoting health and well-being.
Example
The mountain air is salubrious and refreshing.
山中的空气有益健康且清新。
C2 noun /ɪˌpɪstəˈmɒlədʒi/

epistemology

认识论
Meaning
The branch of philosophy that studies the nature, origin, and scope of knowledge.
Example
Epistemology explores the difference between justified belief and opinion.
认识论探索公正的信仰和意见之间的区别。
A1 noun /reɪn/

Rain

雨
Meaning
water that falls from clouds in small drops
Example
The heavy rain forced us to stay indoors.
大雨迫使我们待在室内。
B1 adjective /ˈɜːrdʒənt/

Urgent

紧急
Meaning
requiring immediate action or attention; pressing
Example
The patient needs urgent medical attention.
病人需要紧急医疗照顾。
B2 noun /æŋˈzaɪ.ə.ti/

anxiety

焦虑或不安
Meaning
A feeling of worry, nervousness, or unease about something with an uncertain outcome.
Example
Meditation helps reduce anxiety and stress.
冥想有助于减少焦虑和压力。
C1 verb /splaɪs/

splice

拼接
Meaning
to join two pieces of rope, film, or other material by weaving or attaching them together
Example
The technician spliced the two wires to restore the connection.
技术员将两根电线拼接起来以恢复连接。
A1 preposition, adverb /ˈoʊvər/

over

在…上面
Meaning
across, on top of, or beyond
Example
The book is lying over the table.
书在桌子上面。
C1 noun ˌmɒd.ɪ.fɪˈkeɪ.ʃənz

modifications

修改
Meaning
The action of making partial or minor changes to something.
Example
DNA modifications enable enhanced traits in crops.
DNA修改使作物的特征得到增强。
C1 adjective /dræb/

drab

单调
Meaning
Dull, lacking brightness or interest; monotonous.
Example
The room looked drab with its gray walls and dim lighting.
这个房间因为灰色的墙壁和昏暗的灯光显得很单调。
B2 verb /həˈræs/

harass

骚扰
Meaning
to persistently annoy or torment someone
Example
The employees complained that their boss harassed them.
员工抱怨他们的老板骚扰了他们
C1 adjective /prəˈvɒkətɪv/

provocative

挑衅的
Meaning
Intended to make people angry, excited, or interested.
Example
She wore a provocative dress to the party.
她穿了一件挑衅的衣服去参加派对。
C1 verb /spɔːn/

spawn

产生
Meaning
to produce or generate, often in large numbers
Example
The video game has spawned many sequels.
这款视频游戏已经产生了许多续集。
B1 noun /ˌvɒl.ənˈtɪər/

Volunteer

志愿者
Meaning
a person who freely offers to take part in an enterprise or undertake a task
Example
Many volunteers helped distribute food to the homeless.
许多志愿者帮助无家可归的人分发食物。
C1 adjective /ˈpɛnsɪv/

pensive

沉思
Meaning
Engaged in deep or serious thought.
Example
She looked pensive as she stared out of the window.
她看起来若有所思地凝视着窗外。
B1 verb /ˌrɛprɪˈzɛnt/

represent

代表
Meaning
to act or speak on behalf of someone or something
Example
He will represent our company at the conference.
他将在会议中代表我们的公司。
B2 adjective /ɪnˈklaɪnd/

inclined

倾向的
Meaning
having a tendency or disposition toward something
Example
He is inclined to help those in need.
他倾向于帮助有需要的人。
C2 noun ˌbaɪ.oʊ.əˈveɪ.lə.bɪl.ə.ti

bioavailability

身体吸收能力
Meaning
The degree to which a substance can be absorbed and used by the body.
Example
Turmeric's bioavailability increases when consumed with black pepper.
姜黄的生物可利用性在与黑胡椒一起食用时增加。
B2 adjective /ˌʌnkənˈvɪnsɪŋ/

Unconvincing

不可信
Meaning
failing to persuade or impress; not believable or credible
Example
His excuse for being late was completely unconvincing.
他因迟到而给出的借口完全不可信。
C1 noun /ˈderˌdevəl/

daredevil

冒险者
Meaning
A person who enjoys doing dangerous or risky things.
Example
The stunt was performed by a famous daredevil.
这个特技是由一位著名的冒险者完成的。
B2 adjective ˈtaɪmləs

timeless

超越时间的
Meaning
Not affected by the passage of time or changes in fashion.
Example
The timeless beauty of the painting has captivated art lovers for generations.
这幅画的超越时间的美丽，几代艺术爱好者都为之着迷。
C1 noun /ˈnɑv.ɪs/

Novice

新手
Meaning
a person new to or inexperienced in a field or situation; a beginner
Example
As a novice driver, she was very careful on the road.
作为一个新手司机，她在路上非常小心。
B1 verb /klæp/

clap

Meaning
To strike the palms of the hands together, usually to express approval or create a sharp sound.
Example
The audience began to clap loudly after the performance.
C1 noun/verb /ˈbæntər/

banter

打趣
Meaning
playful and friendly exchange of teasing remarks
Example
The colleagues enjoyed some light banter during the meeting.
同事们在会议期间享受了一些轻松的班特。
B2 noun /ˈaʊtˌskɜːrt/

outskirt

城市郊区
Meaning
the outer edge or border of a town or city
Example
They built a new factory on the outskirts of the city.
他们在城市郊区建了一家新工厂。
C1 noun ɪɡˌzæs.pəˈreɪ.ʃən

exasperation

恼怒
Meaning
Extreme irritation or frustration.
Example
He sighed in exasperation after hearing the same excuse again.
他在再次听到同样的借口后，因恼怒而叹了口气。
A2 modal verb /ɔːt/

ought

应该
Meaning
Used to indicate duty, correctness, or moral obligation.
Example
You ought to respect your elders.
你应该尊重长辈。
C1 noun /ˌdʒɛr.iˈætrɪks/

geriatrics

老年病学
Meaning
the branch of medicine dealing with the health and care of old people
Example
He specialized in geriatrics to care for the elderly.
他专门研究老年病学，以照顾老年人。
C2 noun /ˈdæl.i.əns/

Dalliance

短暂的恋情; 风流韵事
Meaning
a casual romantic or sexual relationship; a brief involvement or experiment
Example
His dalliance with photography lasted only a few months before he lost interest.
他与摄影的短暂关系只持续了几个月，之后他失去了兴趣。
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。
C2 noun /ˈkɒn.kɔːd/

concord

协议或和谐
Meaning
Agreement or harmony between people or groups.
Example
The leaders worked towards international concord.
领导人们为国际和谐而努力。
C1 noun /ˈsɛvərəns/

severance

离职补偿
Meaning
the act of ending something, especially a relationship or employment; compensation paid upon termination
Example
The company offered him severance pay after his job ended.
公司在他工作结束后提供了离职补偿。
C1 noun /ˈsɑːri/

Saree

纱丽
Meaning
a garment consisting of a length of cotton or silk elaborately draped around the body, traditionally worn by women from South Asia
Example
She looked elegant in her red silk saree at the festival.
她在节日上穿着红色丝绸纱丽看起来非常优雅。
A2 noun /dʒɔɪ/

Joy

欢乐
Meaning
a feeling of great pleasure and happiness; a person or thing that causes delight
Example
The children's laughter filled the house with joy during the holiday celebration.
孩子们的笑声在假日庆典期间充满了整个房子。
C2 noun /ˈlɪnəmənt/

liniment

擦剂 / 洛神
Meaning
A liquid or lotion applied to the skin to relieve pain or stiffness.
Example
He rubbed liniment on his sore muscles after the workout.
他在训练后擦上了伤痛的肌肉上了擦剂。
A1 interjection /hɑː/

ha

哈! (表示惊讶或喜悦的表达)
Meaning
used to express amusement, surprise, or triumph
Example
Ha! I knew you couldn’t resist joining us.
哈！我知道你无法抵挡加入我们的诱惑。
C1 noun /ˈkaʊntərˌpɔɪnt/

counterpoint

对比点
Meaning
an argument, idea, or theme contrasting with another; also a musical term for independent melody
Example
Her calm attitude was a counterpoint to his anger.
她的平静态度是他愤怒的对比点。
C1 adjective /ˈstɪndʒi/

stingy

吝啬
Meaning
unwilling to spend or give; miserly
Example
He is too stingy to buy a gift for his friend.
他太吝啬了，连给朋友买礼物都不愿意。
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 noun /ɡʊdz treɪn/

Goods train

货运列车
Meaning
a train designed to transport cargo and freight rather than passengers
Example
The long goods train carried containers from the port to the inland depot.
长货运列车从港口到内陆仓库运输集装箱。
B2 noun /ˌaɪ.səˈleɪ.ʃən/

Isolation

隔离
Meaning
the process or fact of isolating or being isolated; separation from other people or things
Example
The patient was kept in isolation to prevent the spread of the infectious disease.
病人被隔离，以防止传染病的传播。
B2 noun /ˈpeə.rən.tɪŋ/

parenting

育儿
Meaning
The care and training a child receives while growing up, involving the development of their mental, physical, and social aspects.
Example
Effective parenting helps children develop confidence and independence.
有效的育儿帮助孩子们发展自信和独立。
C1 adjective /ˈpɪt.i.əs/

Piteous

可怜的; 引起同情的
Meaning
deserving pity; arousing compassion
Example
The piteous cries of the injured animal moved everyone to tears.
受伤动物的悲惨叫声让每个人都泪流满面。
B1 noun /hjuːˈmænɪti/

humanity

人性
Meaning
the quality of being human; kindness or compassion towards others; all human beings collectively
Example
Kindness is one of the greatest expressions of humanity.
善良是人性最伟大的表现之一。
B2 verb /dɪˈpraɪv/

deprive

Meaning
to take something away from someone, or prevent them from having it
Example
The new law may deprive people of their rights.
B2 noun /ˌiː.kəˈnɒm.ɪk ˈsɪs.təm/

economic system

经济系统
Meaning
The organized framework for production, distribution, and consumption of goods and services in society.
Example
Capitalism, socialism, and mixed economies are types of economic systems.
资本主义、社会主义和混合经济是经济系统的类型。
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。
C2 adjective /ˈkɒndaɪn/

condign

应得的
Meaning
deserved, appropriate, and fitting (especially punishment)
Example
The criminal received condign punishment for his crimes.
罪犯因其罪行受到了应得的惩罚。
C1 adjective /ˌfɪl.hɑːrˈmɒn.ɪk/

philharmonic

与交响乐团有关
Meaning
relating to a symphony orchestra or its music
Example
The philharmonic orchestra performed a stunning rendition of Beethoven's Ninth Symphony.
爱乐乐团演绎了贝多芬第九交响曲的精彩版本。
C2 verb /nɑːrl/

gnarl

扭曲
Meaning
To twist into a knotted or distorted form.
Example
The tree roots began to gnarl around the stones.
树根开始绕着石头扭曲。
A2 noun /ˈkloʊðɪŋ/

clothing

衣服
Meaning
items worn to cover the body; apparel collectively
Example
Warm clothing is essential in winter.
冬天，保暖衣物是必不可少的。
B2 noun /ˈbrɔːdˌkæstər/

broadcaster

广播员
Meaning
a person or organization that transmits a broadcast program.
Example
The broadcaster aired the match live to millions of viewers.
广播员将比赛实时转播给数百万观众。
B2 adjective /ˈʌt.ɚ/

Utter

完全的; 绝对的; 全部的
Meaning
complete; absolute; total
Example
The movie was an utter disaster at the box office.
这部电影在票房上完全失败了。
B2 noun /ˌmɪsˈfɔːrtʃən/

misfortune

不幸
Meaning
Bad luck or an unfortunate event.
Example
He suffered the misfortune of losing his job during the recession.
他在经济衰退期间失业的不幸遭遇。
C1 adjective /ɪnˈvɑːlənˌtɛri/

involuntary

不由自主
Meaning
done without will or conscious control
Example
He gave an involuntary shiver when he heard the loud noise.
他听到响亮的声音时不由自主地打了个寒战。
B1 adjective /blæŋk/

blank

空白
Meaning
showing no expression or containing nothing written, printed, or recorded.
Example
Her face went blank when she heard the bad news.
当她听到坏消息时，她的脸变得空白。
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。
B2 noun /ˌrɛprɪzɛnˈteɪʃən/

representation

代表
Meaning
the action of speaking or acting on behalf of someone or something
Example
Her representation of the team was impeccable.
她对团队的代表非常出色。
B2 adjective ˈel.ɪ.dʒə.bəl

eligible

有资格的
Meaning
Having the right to do or obtain something through satisfaction of the appropriate conditions.
Example
Only eligible candidates are considered for appointments.
只有有资格的候选人才会被考虑任命。
B2 verb /ɪnˈrɪtʃ/

enrich

丰富
Meaning
To improve or enhance the quality or value of something.
Example
Space exploration enriches human understanding.
太空探索丰富了人类的理解。
B1 verb /ˈstɒpɪŋ/

stopping

停止
Meaning
Coming to a halt or pause.
Example
The ship is stopping at the Falkland Islands.
船只正在福克兰群岛停靠。
C2 noun /ˌdaɪvəˈɡeɪʃən/

divagation

偏离
Meaning
digression; wandering from a path or subject
Example
His lecture was full of divagation, making it hard to follow the main point.
他的演讲充满了偏离主题的内容，使得很难跟上主要论点。
B2 noun, verb /ˈɪnstɪˌtjuːt/

institute

学院
Meaning
as a noun, an organization founded for a specific purpose; as a verb, to establish or initiate
Example
The university decided to institute new rules for the library.
大学决定为图书馆制定新规则。
B1 noun /ˈsʌb.weɪ/

Subway

地铁
Meaning
an underground railway system; an underground passage for pedestrians
Example
I take the subway to work every morning because it's faster than driving.
我每天早上乘地铁上班，因为它比开车更快。
A1 noun /ˈpæstə/

pasta

意大利面
Meaning
an Italian food made from flour and water, typically shaped into noodles or sheets
Example
We had creamy pasta for dinner last night.
昨晚我们吃了奶油意大利面作为晚餐。
C2 adjective /ˈdʒɔːndɪst/

jaundiced

偏见的 / 嫉妒的 / 由黄疸引起的
Meaning
Affected by or displaying prejudice, envy, or bitterness; also refers to having a yellowish discoloration of the skin due to jaundice.
Example
She gave a jaundiced view of the project after her proposal was rejected.
在她的提案被拒绝后，她对这个项目给出了一个偏见的看法。
C2 adjective /kɒnˈsæŋɡwɪn/

consanguine

同血缘的
Meaning
Of the same blood or origin; related by birth.
Example
The two families were consanguine through their grandparents.
这两个家庭通过他们的祖父母是同血缘的。
C2 adjective /ˈdɛsəlˌtɔːri/

desultory

杂乱无章
Meaning
lacking a clear plan, purpose, or enthusiasm
Example
His desultory conversation bored the audience.
他那杂乱无章的谈话让观众感到无聊。
B2 verb /tæn/

tan

Meaning
to make skin or a hide brown by exposure to the sun or by using chemicals
Example
She tanned her skin after spending the summer at the beach.
C1 adjective /ˌkætəˈklɪzmɪk/

cataclysmic

灾难性的
Meaning
Relating to or denoting a violent natural event or upheaval.
Example
The war had cataclysmic effects on the nation's economy.
战争对该国经济产生了灾难性的影响。
C2 noun /əˌbɑː.məˈneɪ.ʃən/

abomination

可憎的事物
Meaning
a thing that causes disgust or hatred
Example
Slavery was considered an abomination.
奴隶制被认为是一种可憎的事物。
C1 adjective /dɪˈpreɪvd/

depraved

堕落的
Meaning
morally corrupt or wicked
Example
The film depicts the life of a depraved criminal.
这部电影描述了一个堕落罪犯的生活。
C1 noun/verb /tæk/

tack

Meaning
a small sharp nail; or to change direction in sailing or approach something differently
Example
She used a tack to pin the paper on the wall.
C1 adjective /təˈren.ʃəl/

Torrential

倾盆大雨; 极其强烈的降雨
Meaning
falling rapidly in copious streams; extremely heavy rainfall
Example
The torrential rain flooded the streets within hours.
倾盆大雨在几个小时内淹没了街道。
C2 noun /ˈbriːzˌweɪ/

breezeway

有顶走道
Meaning
A roofed outdoor passage, often connecting two buildings.
Example
The breezeway connected the house to the garage.
有顶走道将房子与车库连接在一起。
C2 adjective rɪˈtɛn.tɪv

retentive

记忆力强
Meaning
Having strong memory or the ability to retain information for a long time.
Example
Students with a retentive memory excel in academics.
记忆力强的学生在学术上表现优异。
C1 verb /ˈsɪn.θə.saɪz/

synthesize

合成
Meaning
To combine a number of things into a coherent whole.
Example
Scientists synthesize new compounds for medical research.
科学家为医学研究合成新的化合物。
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。
B2 noun /ˈbɒmɪŋ/

bombing

轰炸
Meaning
an attack using bombs or explosives
Example
The city was devastated by the bombing.
这座城市在轰炸中被摧毁。
C2 adjective /ˌɛpɪkjʊˈriːən/

epicurean

享乐主义
Meaning
relating to the enjoyment of fine food, drink, and luxury
Example
The chef prepared an epicurean feast for the guests.
厨师为客人准备了一场享乐主义的盛宴。
A1 noun /mɪlk/

Milk

牛奶
Meaning
a white liquid produced by cows, goats, or other mammals, used as food
Example
Children need to drink milk for strong bones.
孩子们需要喝牛奶来增强骨骼的强度。
C2 noun /buːb/

boob

傻瓜；胸部（口语）
Meaning
a foolish or clumsy person; an informal and sometimes rude term for a woman's breast
Example
He felt like a complete boob after forgetting the meeting.
忘记会议后，他觉得自己像个十足的傻瓜。
C1 verb /sluː/

slew

突然转向
Meaning
To turn or slide violently in a particular direction.
Example
The car slewed across the icy road.
汽车在结冰的路面上突然滑动。
C2 noun /ˈreɪmənt/

raiment

衣服
Meaning
clothing, especially fine or formal wear
Example
The king wore royal raiment during the ceremony.
国王在仪式上穿着皇家衣服。
C1 noun /ˈdɪsənˌtɛri/

dysentery

肠道疾病（伴有血液和粘液的腹泻）
Meaning
An infection of the intestines resulting in severe diarrhea with blood and mucus.
Example
Many soldiers suffered from dysentery during the war.
许多士兵在战争期间患上了痢疾。
C1 verb /ˈsaɪdˌstɛp/

sidestep

回避
Meaning
To avoid something by stepping aside; to evade a problem or question indirectly.
Example
The politician tried to sidestep the difficult question.
那位政治家试图回避那个棘手的问题。
C2 noun /ˌɛksəˈdʒiːsɪs/

exegesis

注释
Meaning
A critical explanation or interpretation of a text, especially a religious scripture.
Example
The professor gave a detailed exegesis of the biblical passage.
教授对圣经章节进行了详细的注释。
A2 adjective /draɪ/

Dry

干燥的; 无湿气或液体; 无聊
Meaning
free from moisture or liquid; not wet; lacking interest or excitement
Example
The desert has very dry climate.
沙漠的气候非常干燥。
C1 verb /kənˈstruː/

construe

解释
Meaning
to interpret or understand the meaning of something in a particular way
Example
His words could be construed as a threat.
他的话可以被理解为威胁。
C1 noun /ˈaɪsətəʊp/

isotope

同位素
Meaning
Atoms of the same element with equal number of protons but different numbers of neutrons.
Example
Carbon-14 is a radioactive isotope used in dating fossils.
碳-14 是一种放射性同位素，用于化石的年代测定。
A2 adjective /ˈmoʊbaɪl/

mobile

移动
Meaning
Able to move or be moved easily; also refers to portable communication devices.
Example
She prefers a mobile lifestyle that allows her to travel frequently.
她更喜欢一种移动的生活方式，这让她可以频繁旅行。
A2 adjective /smuːð/

Smooth

平滑的; 无困难的; 流畅的
Meaning
having an even surface; without difficulties; flowing easily
Example
The road was smooth and comfortable to drive on.
这条路很平滑，开车很舒服。
C1 noun /sɪˈkriː.ʃən/

Secretion

分泌
Meaning
a process by which substances are produced and discharged from a cell or gland
Example
Insulin secretion is crucial for blood sugar regulation.
胰岛素分泌对血糖的调节至关重要。
C1 verb ɪˈnɔː.ɡjə.reɪ.tɪd

inaugurated

开幕
Meaning
Begin or introduce (a system, policy, or period) formally.
Example
The organization was inaugurated officially.
该组织已正式开幕。
A1 adjective /braʊn/

Brown

棕色
Meaning
having the color of earth or wood; dark colored
Example
She has beautiful brown eyes that sparkle in the sunlight.
她有一双美丽的棕色眼睛，在阳光下闪烁。
C2 noun /ˈtoʊ.di/

Toady

拍马屁者
Meaning
a person who acts obsequiously to gain favor; a sycophant
Example
He was known as a toady who always agreed with the boss.
他被认为是一个总是同意老板的阿谀奉承者。
C1 adverb /əˈtroʊʃəsli/

atrociously

极其糟糕地
Meaning
in a very cruel, shocking, or extremely bad manner
Example
The service at the restaurant was atrociously slow.
这家餐馆的服务慢得极其糟糕。
B1 noun /prɪnt/

Print

印刷; 标记; 痕迹;
Meaning
words, letters, or pictures produced on paper using a machine; a mark made by pressing something onto a surface
Example
The book is available in both digital and print versions.
这本书有数字版和印刷版可供选择。
B2 adjective /ˌærəˈmætɪk/

aromatic

芳香的
Meaning
Having a pleasant and distinctive smell.
Example
The chef used aromatic herbs to flavor the dish.
厨师使用芳香的草药来调味这道菜。
C1 noun /ˈspɛkjʊˌleɪtər/

speculator

投机者
Meaning
A person who forms theories without evidence, or invests in assets hoping for profit.
Example
The real estate speculator bought land hoping its value would rise.
房地产投机者购买了土地，希望其价值会增加。
C1 verb /koʊˈhæbɪt/

cohabit

同居
Meaning
To live together, often as partners without being married.
Example
They decided to cohabit before getting married.
他们决定在结婚前同居。
B1 noun /ˈɡɑːr.bɪdʒ/

Garbage

垃圾; 废料
Meaning
waste material; refuse or litter; something worthless or meaningless
Example
Please take out the garbage before the collection truck arrives tomorrow morning.
请在收集卡车明天早上到达之前把垃圾拿出去。
C1 verb /kənˈviːn/

convene

集合，召集会议或集会
Meaning
to come together or assemble, especially for a meeting or formal gathering
Example
The board will convene tomorrow to discuss the new policy.
董事会将在明天召开，讨论新的政策。