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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。
C2 noun /əˈstɪɡmətɪzəm/

astigmatism

散光
Meaning
An eye defect causing blurred vision due to irregular curvature of the cornea or lens.
Example
She wears glasses to correct her astigmatism.
她戴眼镜来矫正她的散光。
A1 noun /wɒnt/

Want

缺乏; 需求
Meaning
lack or shortage of something; poverty or need
Example
There is a want of fresh water in the drought-affected areas.
在干旱影响的地区，缺乏淡水。
B2 adjective /ˈpoʊ.lər/

polar

极地的，关于两极的
Meaning
relating to the North or South Pole; opposite in nature or character
Example
Penguins live in polar regions of the Earth.
企鹅生活在地球的极地地区。
B1 adjective /ɪmˈpres.ɪv/

Impressive

令人印象深刻的
Meaning
striking; remarkable; having the ability to impress
Example
Her impressive performance earned her a standing ovation.
她出色的表演赢得了全场起立鼓掌。
A2 noun pəˈzɪʃ.ən

position

位置
Meaning
A particular way in which someone or something is placed or arranged.
Example
The team's position reflects consistent performance.
团队的位置反映了持续的表现。
C1 adjective পারসিভেবল

perceivable

可察觉的
Meaning
Able to be seen, noticed, or detected.
Example
The changes in winter weather are perceivable in rural areas.
冬季天气的变化在农村地区是可察觉的。
C1 noun /rɪˈpʌlʃən/

Repulsion

排斥
Meaning
a feeling of intense distaste or disgust; a force under the influence of which objects tend to move away from each other
Example
She felt a strong repulsion towards the idea of eating insects.
她对吃昆虫这个想法感到强烈的排斥。
B2 noun /ˈɔːltər/

Altar

祭坛
Meaning
a raised structure on which offerings or sacrifices are made to a deity
Example
The bride and groom stood before the altar during the ceremony.
新郎和新娘在仪式中站在祭坛前。
B1 adjective ˈlɔːŋ.tɜːrm

long-term

长期的, 可持续的, 永久的
Meaning
Occurring over or involving a relatively long period of time.
Example
Long-term planning is necessary for environmental conservation.
长期规划对环境保护至关重要。
C1 adjective /ɪkˈsplɔɪtətɪv/

exploitative

剥削性的
Meaning
making use of a situation or people unfairly and unethically for one's own advantage
Example
The workers protested against the exploitative practices of the factory.
工人们抗议工厂的剥削行为。
C1 noun /ˈmaɪzər/

miser

吝啬鬼
Meaning
A person who hoards wealth and spends as little money as possible.
Example
The old miser refused to donate even a penny to charity.
那个老吝啬鬼甚至不愿意捐赠一分钱给慈善。
A1 noun /ˈdɪnər/

Dinner

晚餐
Meaning
the main meal of the day, typically eaten in the evening
Example
The family gathered for dinner at 7 PM.
全家在晚上7点聚集在一起吃晚餐。
B2 noun /ˌkovuːɪɡˈzɪs.təns/

Co-existence

共存
Meaning
the state of existing together at the same time or in the same place; peaceful cohabitation
Example
The peaceful co-existence of different cultures makes this city unique.
不同文化的和平共存使这座城市独一无二。
B2 verb /kreɪv/

crave

渴望, 强烈的欲望
Meaning
to have a strong desire for something
Example
She craves adventure and often travels to remote places.
她渴望冒险，并经常前往偏远的地方。
C1 adjective /ˈlaʊzi/

lousy

糟糕
Meaning
of very poor quality; bad or unpleasant
Example
He felt lousy after catching the flu.
他在得了流感后感觉很糟糕。
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。
C1 noun ˈflɔː.rə ænd ˈfɔː.nə

flora and fauna

植物和动物
Meaning
The plants and animals of a particular region, habitat, or geological period.
Example
The Galápagos Islands have unique flora and fauna.
加拉帕戈斯群岛拥有独特的植物和动物。
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 adjective /ˈwɪl.fəl/

Wilful

固执的; 故意的
Meaning
deliberately stubborn; done on purpose; intentional
Example
His wilful disobedience led to punishment.
他的故意不服从导致了惩罚。
B2 noun /ˈsɜːrkɪt/

circuit

电路 / 电气通路
Meaning
A roughly circular line, route, or movement that starts and ends at the same place; also an electrical pathway.
Example
The runners completed the circuit around the park.
跑步者完成了环绕公园的电路。
B2 noun/verb /hɜːrd/

herd

Meaning
a large group of animals of the same type that live and feed together; or to gather animals into a group.
Example
The shepherd herded the sheep into the pen.
B2 verb /rɪˈzɜːv/

reserve

预定
Meaning
to keep something for future use; to book in advance
Example
I want to reserve a table for dinner.
我想为晚餐预订一张桌子。
C1 adjective /ˌmɪsəˈleɪniəs/

Miscellaneous

各种各样的; 混合的; 多样的
Meaning
various; diverse; mixed; assorted
Example
The box contained miscellaneous items from different periods.
盒子里有不同时间段的各种物品。
A1 adverb /fɑːr/

far

远
Meaning
at, to, or by a great distance
Example
The school is far from my house.
学校离我家很远。
B1 verb, noun /klɪp/

clip

Meaning
to cut or trim something; a short extract from a film, broadcast, or recording
Example
She clipped the coupon from the newspaper.
C2 verb /ˈnɪɡəl/

niggle

Meaning
to cause slight but persistent annoyance, discomfort, or worry
Example
A small doubt niggled at her mind.
C1 noun /ɪˈnɜː.ʃə/

Inertia

惯性；缺乏活动
Meaning
a tendency to do nothing or remain unchanged; lack of activity or movement
Example
The team's inertia prevented them from adapting to the rapidly changing market conditions.
团队的惯性阻止了他们适应迅速变化的市场条件。
A2 noun /saɪz/

size

尺寸
Meaning
the physical dimensions, proportions, or magnitude of something
Example
This shirt is too small in size for me.
这件衬衫对我来说在尺寸上太小了。
C2 noun /seɪn/

seine

大网
Meaning
A large fishing net that hangs vertically in the water.
Example
The fishermen cast their seine into the river.
渔民把他们的大网扔进了河里。
B2 noun, verb /sɪn/

sin

罪
Meaning
an immoral act considered to be a transgression against divine law; to commit an offense against religious or moral law
Example
He confessed his sin to the priest.
他向神父忏悔了他的罪。
B2 adverb /ˈɜːrdʒəntli/

urgently

紧急地
Meaning
in a way that requires immediate attention or action
Example
The patient urgently needs medical attention.
病人紧急地需要医疗救助。
A2 noun /dʒoʊk/

Joke

笑话; 幽默; 引起笑声的事情
Meaning
a thing that someone says to cause amusement or laughter; something not to be taken seriously
Example
Everyone laughed at his funny joke during the dinner party.
每个人都在晚宴上笑他的有趣笑话。
C2 noun /ˌriːkruːˈdɛsəns/

recrudescence

复发
Meaning
a new outbreak or revival of something that had subsided, especially an undesirable condition
Example
Health officials warned of a recrudescence of measles in several districts.
卫生官员警告多个地区麻疹的复发。
B1 noun /ˈpɑr.səl/

Parcel

包裹; 土地块
Meaning
an object or collection of objects wrapped in paper for carrying or sending by mail; a piece of land
Example
The postman delivered a parcel to our door.
邮递员把包裹送到我们门口。
C1 noun ˈæk.si.əm

axiom

公理
Meaning
A statement or principle that is considered true and does not require proof.
Example
Actions speak louder than words is a well-known axiom.
行动胜于语言，这是一个著名的公理。
C2 adjective /ˈɛdɪfaɪɪŋ/

edifying

启发性的
Meaning
Providing moral or intellectual instruction or enlightenment.
Example
The documentary was both entertaining and edifying.
这部纪录片既娱乐又启发人心。
C1 noun /ˈɪnstɪˌɡeɪtər/

instigator

煽动者
Meaning
A person who brings about or initiates something, usually something bad.
Example
The police identified him as the instigator of the violence.
警方将他定为暴力的煽动者。
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。
B2 noun /dɪˈfɛndər/

defender

防守者
Meaning
a person who protects someone or something from harm or attack
Example
The defender blocked the shot and saved the goal.
防守者挡住了射门并拯救了进球。
B2 noun /ˈlɪt.ər.ə.si/

Literacy

识字
Meaning
the ability to read and write; competence or knowledge in a specified area
Example
Adult literacy programs help people learn to read.
成人识字课程帮助人们学习阅读。
C1 noun /ˈɡlædiˌeɪtər/

gladiator

角斗士
Meaning
A man trained to fight in public contests in ancient Rome.
Example
The gladiator fought bravely in the arena.
角斗士勇敢地在竞技场中作战。
B2 noun /ˈder.ɪŋ/

Daring

大胆; 愿意冒险
Meaning
adventurous courage; willingness to take risks
Example
The mountain climber's daring impressed everyone at the base camp.
登山者的大胆令基地营的每个人都印象深刻。
B2 noun /ˈdɛməˌkræt/

democrat

民主党人
Meaning
a supporter of democracy or a member of the Democratic Party in the US
Example
He is a strong democrat who believes in equal rights.
他是一个坚强的民主党人，相信平等的权利。
B2 noun /ˌep.ɪˈdem.ɪk/

Epidemic

流行病
Meaning
a widespread occurrence of an infectious disease in a community
Example
The flu epidemic affected thousands of people across the country.
流感疫情影响了全国成千上万的人。
B2 noun /ˈstæm.ɪ.nə/

Stamina

耐力
Meaning
the ability to sustain prolonged physical or mental effort
Example
Marathon runners need great stamina to complete the race.
马拉松选手需要强大的耐力才能完成比赛。
A2 noun /ˈpjuːpəl/

pupil

学生; 瞳孔
Meaning
a student, especially a young one; the central opening of the eye that lets in light
Example
The pupil listened carefully to the teacher during class.
学生在课堂上认真听老师讲课。
B2 adjective /ɪkˈsɛntrɪk/

eccentric

古怪的
Meaning
unconventional and slightly strange in behavior or appearance
Example
The artist was known for his eccentric style.
艺术家以其古怪的风格而闻名。
B2 noun /ˈtriː.oʊ/

trio

三人组
Meaning
A group of three people or things, especially in music or performance.
Example
The jazz trio played beautifully at the concert.
爵士三重奏在音乐会中演奏得非常精彩。
C2 noun /ˈspɛndˌθrɪft/

spendthrift

挥霍者
Meaning
A person who spends money extravagantly or wastefully.
Example
The young prince was known as a spendthrift, wasting his fortune on lavish parties.
年轻的王子被称为挥霍者，浪费他的钱财在奢华的派对上。
C1 adjective /ˈreɪ.kɪʃ/

Rakish

俏皮
Meaning
having a dashing, jaunty, or slightly disreputable quality or appearance
Example
He wore his hat at a rakish angle that gave him a charming appearance.
他戴着一顶俏皮的帽子，给人一种迷人的感觉。
B1 adjective /əˈlɜːrt/

alert

警觉
Meaning
quick to notice and respond to potential danger or issues; aware and attentive
Example
The alert dog barked at the stranger approaching the house.
警觉的狗对接近房子的陌生人大声吠叫。
B2 adjective /ɪnˈvaɪrənmənt ˈfrɛndli/

environment-friendly

环保
Meaning
Designed or produced in a way that causes minimal harm to the environment, often using sustainable materials and processes that reduce ecological impact.
Example
Environment-friendly products are designed to reduce ecological damage.
环保产品旨在减少生态损害。
B2 verb əˈteɪnd

attained

获得
Meaning
Succeeded in achieving (something that one desires and has worked for); reached a specified age, size, or amount.
Example
The region attained remarkable progress.
该地区取得了显著的进展。
C1 verb /ˈflʌtər/

flutter

拍动 / 颤动
Meaning
to move or flap quickly and lightly; to beat or wave with small rapid motions
Example
The butterfly began to flutter its wings in the sunlight.
蝴蝶开始在阳光下扑动它的翅膀。
C1 adjective /ˌaɪ.di.əˈlɒdʒ.ɪ.kəl/

ideological

意识形态的
Meaning
Relating to or based on a system of ideas or beliefs.
Example
The two parties are divided by deep ideological differences.
这两个党派由于深刻的意识形态分歧而分裂。
C2 verb /ˌaʊtməˈnuːvər/

outmaneuver

巧妙地战胜
Meaning
to gain an advantage over an opponent by skillful or clever action
Example
The smaller company managed to outmaneuver its larger rival.
小公司成功地战胜了它的大对手。
B2 noun ˈæsɪd reɪn

acid rain

酸雨
Meaning
Rainfall made acidic by atmospheric pollution, especially from industrial emissions.
Example
Acid rain damages crops and buildings.
酸雨损害农作物和建筑物。
B2 noun /ˈmɜːrdərər/

murderer

凶手
Meaning
a person who unlawfully kills another human being with intent
Example
The murderer was caught by the police within hours.
凶手在几个小时内被警方逮捕。
B1 noun /ˈdʒɪn.dʒər/

Ginger

姜
Meaning
a hot fragrant spice made from the rhizome of a plant; the plant itself
Example
The chef added fresh ginger to the stir-fry to enhance its flavor and aroma.
厨师在炒菜中加入了新鲜的姜，以增强其味道和香气。
B1 noun /əkˈsɛptəns/

acceptance

接受
Meaning
the act of agreeing to receive or undertake something offered
Example
Her acceptance of the award was met with applause.
她接受奖项时，掌声四起。
C1 noun /ˈkɒl.ə.bəʊn/

Collar-bone

锁骨
Meaning
either of the pair of bones joining the breastbone to the shoulder blades; clavicle
Example
He broke his collar-bone in the accident.
他在事故中摔断了锁骨。
C2 adjective /ˈhæl.si.ən/

halcyon

宁静的
Meaning
calm, peaceful, and happy; denoting a period of time in the past that was idyllically happy and peaceful
Example
She often reminisces about the halcyon days of her childhood.
她经常回忆起她童年时宁静的日子。
B2 adjective /ˈræʃ.ən.əl/

Rational

理性; 合理; 逻辑
Meaning
based on reason and logic; sensible and practical
Example
She made a rational decision based on the available facts.
她根据可用的事实做出了理性的决定。
A2 noun /veɪˈkeɪ.ʃən/

Vacation

假期
Meaning
a period of time when someone does not go to work or school but is free to do what they want, such as travel or relax
Example
I'm planning a vacation to the beach next summer.
我计划明年夏天去海滩度假。
C1 verb /ˈræʃənəlaɪz/

rationalize

理性化
Meaning
to attempt to explain or justify behavior or decisions with logical reasons, even if they are not true or appropriate
Example
She tried to rationalize her lateness by blaming the traffic.
她试图通过怪罪交通来为自己的迟到辩解。
C1 noun /ˈmuːdi.nəs/

moodiness

情绪不稳定
Meaning
The state of being frequently subject to changes in mood, especially irritability or sadness.
Example
Her moodiness made it difficult to predict how she would react.
她的情绪不稳定使得很难预测她会如何反应。
A1 noun /ˈkwes.tʃən/

Question

问题; 疑问句;
Meaning
a sentence asking for information or a response; an interrogative expression
Example
The teacher asked a difficult question during the exam.
老师在考试中提出了一个难题。
B2 noun /ˈprɒbləm ˈsɒlvɪŋ/

problem-solving

问题解决
Meaning
The process of finding solutions to difficult or complex issues.
Example
Problem-solving skills are key to leadership.
解决问题的技能是领导力的关键。
C1 noun /ˌpɜːrsɪˈkjuːʃn/

persecution

迫害
Meaning
the act of treating someone cruelly or unfairly because of their religion, race, or beliefs
Example
The persecution of minorities has been condemned worldwide.
对少数民族的迫害在全球范围内遭到谴责。
C2 noun /ˈɡɪni/

guinea

吉尼 (英国旧金币)
Meaning
A former British gold coin; also refers to Guinea, a country in West Africa
Example
The antique coin was worth one guinea.
古老的金币价值一个吉尼。
C1 adjective /sɔɪld/

soiled

脏的
Meaning
dirty or stained; not clean
Example
His clothes were soiled after playing in the mud.
他在泥巴里玩后，衣服弄脏了。
A2 noun /ˈʌn.jən/

Onion

洋葱
Meaning
a round vegetable with a strong taste and smell, made up of many layers
Example
I need to chop some onions for the curry recipe.
我需要切一些洋葱来做咖喱菜谱。
A1 verb /læst/

last

持续
Meaning
to continue to exist or happen for a period of time; to endure
Example
The meeting lasted for three hours.
会议持续了三个小时。
C2 adjective /kəmˈprɛsəbl̩/

compressible

可压缩的
Meaning
Capable of being compressed or reduced in volume.
Example
Air is a compressible substance, unlike water.
空气是一种可压缩的物质，不像水。
B2 noun /ˈboʊlər/

bowler

投球员
Meaning
a person who delivers the ball in cricket; also a type of hard felt hat with a rounded crown
Example
The bowler took three wickets in the first over.
投球员在第一轮中拿下了三个wicket。
B1 adjective /ˌʌnbɪˈliːvəbəl/

Unbelievable

难以置信
Meaning
impossible to believe; extremely surprising or remarkable
Example
The magician's performance was absolutely unbelievable.
魔术师的表演简直令人难以置信。
C1 adjective /ˈsɛnʃuəs/

sensuous

感官的
Meaning
Relating to or affecting the senses rather than the intellect; pleasing to the senses.
Example
The garden was filled with sensuous colors and fragrances.
花园里充满了感官的色彩和香气。
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。
C1 verb /ˌdɪsɪnˈtæŋɡl/

disentangle

解开
Meaning
To free something or someone from a tangle or complication.
Example
She tried to disentangle her hair from the branches.
她试图把头发从树枝上解开。
B2 verb /əˈmend/

amend

修改
Meaning
to make changes or corrections to improve something; to modify
Example
They amended the contract to include new terms.
他们修改了合同以包括新的条款。
A2 noun /ˈketʃ.ʌp/

Ketch-up

番茄酱
Meaning
a thick sauce made chiefly from tomatoes, vinegar, and spices
Example
She squeezed some ketchup on her french fries before eating them.
她在吃薯条前挤了一些番茄酱。
A1 noun /aɪˈdiː.ə/

Idea

主意; 概念; 提议
Meaning
a thought or suggestion as to a possible course of action; a concept or mental impression
Example
She had a brilliant idea for solving the company's efficiency problem.
她有一个解决公司效率问题的精彩主意。
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 noun /ˌkɒmpɪˈleɪʃən/

compilation

汇编
Meaning
a collection of things, especially pieces of writing or music, gathered together
Example
The book is a compilation of his best essays.
这本书是他最好的文章合集。
C1 noun /mɑːrˈsuːpiəl/

marsupial

携带并在袋中喂养幼崽的哺乳动物
Meaning
A type of mammal that carries and nourishes its young in a pouch, like kangaroos and koalas.
Example
The kangaroo is a well-known marsupial.
袋鼠是一个著名的有袋类动物。
B2 noun /ˈɡræs.hɒp.ər/

Grass-hopper

蚱蜢
Meaning
a jumping insect with long hind legs that feeds on grass and plants
Example
The grasshopper jumped from one leaf to another.
蚱蜢从一片叶子跳到另一片。
C1 adjective /ˌʌnɪˈkwɪvəkəl/

unequivocal

明确
Meaning
Leaving no doubt; clear and unambiguous
Example
She gave an unequivocal answer to the question.
她对问题给出了明确的回答。
B2 noun /ˈwɒndərər/

Wanderer

流浪者; 旅行者，目的地不确定
Meaning
a person who travels aimlessly; someone who roams from place to place
Example
The wanderer explored different countries without a fixed destination.
流浪者在没有固定目的地的情况下探索了不同的国家。
C2 verb /loʊp/

lope

以长而有弹跳的步伐奔跑或移动
Meaning
to run or move with a long, bounding stride
Example
The horse loped gracefully across the field.
马优雅地在田野上跑步。
C1 noun /ˌlɪbəˈreɪʃən wɔːr/

liberation war

解放战争
Meaning
a war fought to gain freedom from foreign rule, occupation, or oppression; an armed struggle for national independence
Example
The liberation war reshaped the nation’s history and identity.
解放战争改变了国家的历史和认同。
C1 noun /dɪˈspɜːrʒən/

dispersion

分散
Meaning
The action or process of distributing things or people over a wide area.
Example
The dispersion of seeds by the wind helps plants reproduce.
风的种子散布有助于植物繁殖。
C2 noun /ˌɪnsəˈrɛkʃən/

insurrection

起义
Meaning
A violent uprising against an authority or government.
Example
The army was called in to suppress the insurrection.
军队被召来镇压起义。
B2 noun /məˈskiː.toʊ net/

Mosquito-net

蚊帐
Meaning
a fine mesh fabric used to cover beds or windows to keep mosquitoes and other insects out
Example
We use a mosquito net to protect ourselves from insect bites.
我们使用蚊帐来保护自己，防止被虫子叮咬。
B1 verb /dɪɡ/

dig

挖掘
Meaning
to break up and move earth with a tool or machine, or with hands, paws, etc.
Example
They decided to dig a hole for the new tree.
他们决定为新树挖一个洞。
B2 noun /ˈməʊtərɪst/

motorist

驾驶员
Meaning
a person who drives a motor vehicle, especially a car or motorcycle
Example
The motorist stopped to help after seeing the accident on the highway.
驾驶员在高速公路上看到事故后停下来帮忙。
C1 adjective ɔːˈspɪʃ.əs

auspicious

吉祥
Meaning
Favorable or bringing good luck and success
Example
The wedding was held on an auspicious day.
婚礼在一个吉祥的日子举行。
C1 adjective /ɪnˈθrɔː.lɪŋ/

enthralling

引人入胜
Meaning
Captivating and holding one's attention completely; fascinating.
Example
The movie was enthralling, keeping the audience engaged till the end.
电影非常引人入胜，使观众直到最后都保持专注。
C2 adjective /ˌsʌpəzɪˈtɪʃəs/

supposititious

假设的
Meaning
Based on assumption rather than fact; not genuine or authentic.
Example
The story turned out to be supposititious, with no evidence to support it.
这个故事证明是假的，没有证据支持它。
C1 noun /mɪˈrɑːʒ/

Mirage

海市蜃楼
Meaning
An optical illusion caused by atmospheric conditions, especially in deserts
Example
The travelers saw a mirage of water in the desert.
旅行者在沙漠中看到了水的海市蜃楼。
C1 adjective + noun ʌnˈpresɪdentɪd ˈnɒlɪdʒ

unprecedented knowledge

前所未有的知识
Meaning
Information or understanding that has never been obtained or achieved before.
Example
Artemis will provide unprecedented knowledge about the solar system.
阿尔忏将提供关于太阳系的前所未有的知识。
C1 verb /rɪˈsiːd/

recede

退去
Meaning
To move back or further away from a previous position.
Example
The floodwaters began to recede after the heavy rain stopped.
暴雨停止后，洪水开始退去。
B1 verb /səˈspɛkt/

suspect

怀疑
Meaning
to believe that someone has done something wrong; to doubt or mistrust
Example
I suspect he is lying about his whereabouts.
我怀疑他在谎报自己的下落。
C2 noun /ˈsaɪz.mə.ɡræf/

seismograph

地震仪
Meaning
An instrument that measures and records details of earthquakes, such as force and duration.
Example
The seismograph detected a strong tremor in the area.
地震仪检测到该地区的强烈震动。
C2 adjective, noun /səbˈmɜːrsəbl/

submersible

潜水器
Meaning
capable of being submerged; a small underwater craft
Example
The scientists explored the deep ocean using a submersible.
科学家们使用潜水器探索了深海。
C1 adjective /ˌɪndɪˈstrʌktəbl/

indestructible

无法摧毁
Meaning
Impossible to destroy or break.
Example
The superhero's shield was said to be indestructible.
有人说超级英雄的盾牌是无法摧毁的。
C1 noun /rɪˈflɛktər/

reflector

反射器
Meaning
A surface or device that reflects light, heat, or sound, often used to direct beams or improve visibility.
Example
The cyclist attached a red reflector to the back of his bike for safety.
骑自行车的人将一个红色反射器固定在他自行车的后面以确保安全。
C2 noun /ˈfʌŋkʃəˌnɛri/

functionary

职员
Meaning
a person who has official duties in an organization, especially one with little authority
Example
The minor functionary was responsible for filing reports.
次要的职员负责提交报告。
B1 noun /ɪmˈpruːvmənt/

improvement

改善
Meaning
the act of making something better
Example
There has been a significant improvement in his health.
他的健康有了显著改善。
A2 adjective /flæt/

flat

平坦
Meaning
Smooth and level, without raised areas or curves.
Example
The road ahead was completely flat.
前方的路完全是平坦的。
B2 noun /ˈmeɪnstriːm/

mainstream

主流
Meaning
the ideas, attitudes, or activities that are regarded as normal or conventional; the dominant trend in opinion or fashion
Example
Social media has become a mainstream source of news for many people.
社交媒体已经成为许多人获取新闻的主流来源。
B2 noun /ˈkɒnsənənt/

consonant

辅音
Meaning
A speech sound produced by blocking air flow, or a letter representing such a sound.
Example
The word 'cat' has two consonants and one vowel.
‘猫’这个词有两个辅音和一个元音。
B2 adjective ˈpeɪn.ləs

painless

无痛
Meaning
Not causing pain; involving little effort or stress.
Example
Modern methods ensure painless treatment.
现代方法确保无痛治疗。
C2 verb /bɪˈhəʊv/

behove

适当
Meaning
British spelling of 'behoove'; to be appropriate or necessary
Example
It would behove the company to listen to its customers.
公司应该听取客户的意见。
C2 noun /ˈskæb.ərd/

scabbard

剑鞘
Meaning
A sheath for the blade of a sword or dagger, typically made of leather or metal.
Example
The knight drew his sword from the scabbard.
骑士从剑鞘中拔出了剑。
B2 adjective /ˈvɛriənt/

Variant

变体；不同版本
Meaning
differing in form, details, or in some other respect; alternative
Example
There are several variant spellings of this word.
这个词有几个变体。
B2 adjective /prɪˈzentəbl/

Presentable

适合公众展示; 看起来体面
Meaning
neat and suitable for being seen in public; acceptable in appearance
Example
Make sure you look presentable for the job interview.
确保在面试中看起来像个体面的人。
B1 noun /ˈsʌn.laɪt/

sunlight

阳光
Meaning
Direct light from the sun.
Example
Sunlight does not reach the abyssal depths of the ocean.
阳光无法到达海洋的深渊。
C2 noun /ˈmɛtrəˌnoʊm/

metronome

节拍器
Meaning
A device that produces regular ticks or beats to help musicians maintain tempo.
Example
She practiced the piano with a metronome to keep steady timing.
她用节拍器练习钢琴，以保持稳定的节奏。
B2 noun /ˈtæksˌpeɪər/

taxpayer

纳税人
Meaning
a person who pays tax to the government
Example
The taxpayers' money is used to fund public services.
纳税人的钱被用于资助公共服务。
A2 verb /ɪnˈkluːd/

include

包括
Meaning
to have as part of a whole; to contain or comprise
Example
The price includes all taxes.
价格包含所有税费。