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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。
B1 adjective /ˈkɒmplɪˌkeɪtɪd/

complicated

复杂
Meaning
consisting of many interconnected parts; difficult to understand
Example
The instructions for the machine are too complicated to follow.
机器的说明书太复杂，无法跟随。
B2 noun /rɪˈstreɪnt/

Restraint

克制; 自我控制
Meaning
the action of keeping someone or something under control; self-control
Example
She showed great restraint in not responding to the criticism.
她在不回应批评时表现出极大的克制。
C2 noun /ˈplɔːdɪts/

plaudits

赞扬
Meaning
expressions of praise or approval
Example
The scientist received plaudits from the international community.
这位科学家得到了国际社会的赞扬。
B1 verb /əˈtʃiːv/

achieve

实现
Meaning
to successfully bring about or reach a desired goal or result
Example
She worked hard to achieve her dream of becoming a doctor.
她为实现成为医生的梦想而努力工作。
B1 noun /ˈdʒʌŋ.ɡəl/

Jungle

密林; 丛林;
Meaning
a dense forest in a tropical climate; a place of bewildering complexity or ruthless struggle
Example
The explorer got lost in the dense Amazon jungle for three days.
探险者在密集的亚马逊丛林中迷路了三天。
B2 noun /dɪˈstrækʃənz/

distractions

干扰
Meaning
Things that prevent someone from concentrating on something else.
Example
Eliminate distractions for better productivity.
消除干扰以提高生产力。
B2 adjective /hoʊˈlɪs.tɪk/

holistic

整体的
Meaning
Understanding or analyzing something through a comprehensive, integrated whole perspective.
Example
A holistic approach to health considers both body and mind.
整体健康方法考虑身体和心理。
B2 noun/verb /ræft/

raft

筏
Meaning
A flat structure made of logs or planks tied together, used as a boat or floating platform; to travel or transport on such a structure.
Example
They built a raft to cross the river.
他们建造了一只筏子来过河。
B2 noun, adjective /ˌpəʊstˈɡrædʒuət/

postgraduate

研究生
Meaning
A student who has completed a first degree and is studying for a further degree.
Example
She is doing postgraduate research in physics.
她正在做物理学的研究生研究。
A1 noun /deɪ/

Day

天; 日
Meaning
a period of twenty-four hours; the time during which there is light
Example
What a beautiful day it is today with clear blue skies!
今天是个美丽的日子，蓝天晴朗！
C1 adjective /ˈfeɪt.fəl/

fateful

决定性或灾难性的
Meaning
having significant or disastrous consequences
Example
Their fateful decision changed the course of history.
他们的决定性决定改变了历史的进程。
B2 noun /ˈklaɪ.mət əˌdæp.teɪ.ʃən/

climate adaptation

气候适应
Meaning
The process of adjusting to current or expected climate change and its effects.
Example
Climate adaptation ensures resilience to change.
气候适应确保了对变化的适应能力。
C1 adjective /əˈfɜːrmətɪv/

affirmative

肯定的
Meaning
expressing agreement, approval, or a positive response
Example
She gave an affirmative answer to the proposal.
她对提案做出了肯定的回答。
B1 adjective əkˈsep.tɪd

accepted

接受的
Meaning
Generally believed or recognized to be valid or correct.
Example
The accepted terms were discussed in detail.
已接受的条款已详细讨论。
C2 adjective /ˈfʌŋɡəs/

fungous

像真菌一样
Meaning
relating to or resembling a fungus
Example
The damp basement had a fungous smell.
潮湿的地下室有一种像真菌一样的气味。
B1 adverb /ˈsædli/

sadly

悲伤地
Meaning
in a sorrowful or unhappy manner
Example
She sadly waved goodbye as the train departed.
火车开走时，她悲伤地挥手告别。
B2 noun /jɔːn/

Yawn

哈欠
Meaning
an involuntary opening of the mouth and inhalation of air due to tiredness or boredom
Example
She couldn't suppress a yawn during the boring lecture.
她在无聊的讲座中无法抑制哈欠。
B1 verb /ˈbrɔːdˌkæst/

broadcast

广播
Meaning
to transmit a program or information by radio, television, or online media
Example
The match was broadcast live on television.
比赛通过电视现场直播。
B1 noun /kəmˈpær.ɪ.sən/

Comparison

比较
Meaning
the act of examining the similarities and differences between two or more things
Example
The teacher made a comparison between the two poems to show their different styles.
老师通过比较两首诗的不同风格来展示它们的差异。
A2 adjective /əˈveɪləbl/

available

可用的
Meaning
Able to be used, obtained, or accessed.
Example
The product is now available in all stores.
该产品现在在所有商店均可用。
C1 noun /fɪˈlæn.θrə.pi/

philanthropy

慈善事业
Meaning
the desire to promote the welfare of others, often expressed by the generous donation of money to good causes
Example
Philanthropy has helped improve healthcare in many developing countries.
慈善事业帮助改善了许多发展中国家的医疗保健。
B2 verb /ˌʌndərˈɛstɪmeɪt/

underestimate

低估
Meaning
To judge something as less important or smaller than it really is.
Example
Never underestimate the power of teamwork.
永远不要低估团队合作的力量。
B1 noun /ˈʃoʊldər/

Shoulder

肩膀
Meaning
the part of the body between the neck and the arm
Example
He carried the bag over his shoulder.
他把包拿在肩膀上。
C1 adjective /prɪˈkoʊʃəs/

precocious

早熟
Meaning
Showing advanced development or maturity at an unusually early age.
Example
The precocious child was reading novels at the age of five.
那个早熟的孩子五岁时就能阅读小说。
C1 adjective /pɑːrtʃt/

parched

极度口渴
Meaning
extremely dry, especially because of heat or thirst
Example
After walking in the desert, he was parched with thirst.
在沙漠中走路后，他极度口渴。
A2 verb, noun /drɒp/

drop

掉 / 水滴
Meaning
to let something fall; a small quantity of liquid
Example
Be careful not to drop your phone.
小心不要把手机掉了。
C2 adjective /dɪˈluːsəri/

delusory

虚幻的
Meaning
Based on illusion; not real.
Example
He was filled with delusory hopes of becoming famous overnight.
他充满了不切实际的希望，认为自己一夜成名。
B2 adjective /trænˈspærənt/

Transparent

透明的
Meaning
allowing light to pass through; clear and obvious; honest and open
Example
The company maintains transparent business practices.
公司保持透明的商业实践。
B2 noun ˌæd.æpˈteɪ.ʃən

adaptation

适应
Meaning
The action or process of adapting or being adapted.
Example
Adaptation to climate change is critical for resilience.
适应气候变化对于韧性至关重要。
C2 noun /juːˌtrɑː.fɪˈkeɪ.ʃən/

eutrophication

湖泊或其他水体中过多的营养物质
Meaning
Excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
Example
Excess fertilizers lead to eutrophication in lakes.
过多的肥料导致湖泊中的优氮化。
C2 verb ˈɪn.kʌl.keɪt

inculcate

灌输
Meaning
Instill an attitude, idea, or habit by persistent instruction; to teach and impress by frequent repetitions.
Example
Parents should inculcate good values in their children.
父母应该灌输良好的价值观给孩子们。
B1 noun /ˈsɜːr.kəmˌsˌtæn.sɪz/

Circumstances

情况
Meaning
the conditions that affect a situation, action, or event; facts or conditions connected with or relevant to an event
Example
Under normal circumstances, she would have arrived by now.
在正常情况下，她应该已经到了。
B2 noun /ˈwɜːrʃɪp/

Worship

崇拜
Meaning
the feeling or expression of reverence and adoration for a deity; religious devotion and practice
Example
They gather every Sunday for worship.
他们每个星期天都聚集在一起进行崇拜。
B1 noun /rɪˈspɒns/

Response

回应; 反应
Meaning
a reaction to something; an answer or reply; the way in which something reacts to external stimulus
Example
The government's response to the crisis was swift and decisive.
政府对危机的回应迅速而果断。
A2 noun ˈkæm.pɪŋ

camping

露营
Meaning
Living outdoors temporarily, especially for recreation; staying in a tent or similar shelter.
Example
Many families go camping during holidays.
许多家庭在假期去露营。
C1 noun/verb /ˈsaɪ.fər/

cipher

密码
Meaning
A secret or disguised way of writing; a code; to put a message into secret writing.
Example
Military messages are protected using a cipher.
军事消息通过密码保护。
C2 adjective /ˈsʌb.æs.ɪd/

subacid

轻微酸
Meaning
Slightly sour or acidic in taste or nature.
Example
The fruit had a subacid flavor that was refreshing on a hot day.
这种水果有一种轻微酸的味道，在炎热的日子里非常清爽。
C2 verb /əˈfaɪəns/

affiance

订婚
Meaning
to promise or pledge marriage; to formally engage
Example
They decided to affiance after years of friendship.
多年友谊之后，他们决定订婚。
C1 noun /ˈskæf.əld/

Scaffold

脚手架
Meaning
a temporary structure used by workers to stand on when building or repairing something high; a platform for execution
Example
The workers erected a scaffold to paint the building's exterior.
工人们搭建了脚手架来粉刷建筑物的外部。
C1 adjective /ˈsɜːrli/

surly

脾气暴躁
Meaning
bad-tempered and unfriendly
Example
The waiter gave us a surly look when we asked for more water.
当我们要求更多的水时，服务员用脾气暴躁的目光看着我们。
C2 noun ˈnjʊə.rəʊ ˌfiːd.bæk

neurofeedback

一种使用实时显示大脑活动来教授大脑功能自我调节的技术
Meaning
A technique that uses real-time displays of brain activity to teach self-regulation of brain function.
Example
Neurofeedback enhances cognitive performance and relaxation.
神经反馈提高了认知表现和放松。
C2 noun /haɪˈdrɒl.ɪ.sɪs/

hydrolysis

水解
Meaning
A chemical process that breaks down compounds by adding water, splitting complex molecules into simpler forms.
Example
Hydrolysis breaks down complex molecules into simpler forms.
水解将复杂的分子分解成更简单的形式。
B2 noun, verb /bluːm/

bloom

开花；繁荣
Meaning
to produce flowers; to develop or flourish; a flower or the state of flowering
Example
The roses bloom beautifully every spring.
玫瑰每年春天都会美丽地开花。
C1 noun (plural of fungus) /ˈfʌndʒaɪ/

fungi

真菌
Meaning
a group of spore-producing organisms such as mushrooms, molds, and yeasts
Example
Fungi play an important role in breaking down organic matter in nature.
真菌在自然界中在分解有机物质方面发挥着重要作用。
C2 adjective /dɪˈklæməˌtɔri/

declamatory

激昂的演讲风格
Meaning
speaking in a loud, rhetorical, or dramatic way
Example
The politician’s declamatory style impressed some but irritated others.
这位政治家的激昂演讲风格让一些人印象深刻，但让另一些人感到恼火。
C2 noun /hɔːɡ plʌm/

Hog plum

豺果
Meaning
tropical fruit with yellow skin and sour taste
Example
Hog plums are often used to make pickles and chutneys.
豺果常用于制作腌制食品和酸辣酱。
C1 noun, verb /ˈskʌf.əl/

scuffle

冲突
Meaning
a short, confused fight or struggle; to engage in such a fight
Example
Two players scuffled on the field after the foul.
两名球员在犯规后在场上发生了冲突。
C1 verb /ˈmɪŋɡl/

mingle

Meaning
to mix or combine; to move among people and engage socially
Example
Guests mingled at the party, chatting and laughing together.
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。
A2 verb /stɪk/

stick

粘贴
Meaning
to adhere or attach something to a surface
Example
The glue will stick to the paper.
胶水会粘在纸上。
C2 noun /ˈɑːrkeɪˌɪzəm/

archaism

古词
Meaning
a word, expression, or style of language that is no longer in everyday use
Example
The poem is full of archaisms that give it an old-fashioned flavor.
这首诗充满了古词，使其带有一种过时的味道。
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。
B2 verb /ˈnæv.ɪ.ɡeɪt/

navigate

导航
Meaning
To plan and direct the route or course of a ship, aircraft, or other form of transport.
Example
The GPS helps navigate complex routes.
GPS帮助导航复杂的路线。
C1 adjective /səˈtɪrɪk/

satiric

讽刺的
Meaning
Relating to or using satire.
Example
The novel takes a satiric view of urban life.
这部小说从讽刺的角度看待城市生活。
B1 adverb /ˈwaɪdli/

widely

广泛地
Meaning
to a great extent or degree
Example
The news of his promotion spread widely across the company.
他晋升的消息在公司内广泛传播。
C1 noun /ˈkælkjʊləs/

calculus

微积分
Meaning
A branch of mathematics concerned with rates of change and accumulation; also a hard mineral deposit in the body such as on teeth.
Example
Calculus is essential for advanced studies in physics and engineering.
微积分是物理学和工程学高级研究的基础。
C2 noun /ɪˈpɪsəl/

epistle

书信
Meaning
A letter, especially a formal or didactic one; often used for letters in the New Testament.
Example
He wrote a long epistle to his friend about his travels.
他写了一封长信给他的朋友，讲述了他的旅行。
A2 verb /bɛr/

bear

承受
Meaning
to carry; to endure; to give birth to; to support
Example
She cannot bear the pain anymore.
她再也承受不了这种痛苦了。
C1 adjective /ˈpjuː.nɪ.tɪv/

punitive

惩罚性
Meaning
Inflicting or intended as punishment.
Example
The company faced punitive measures for violating the law.
该公司因违反法律而面临惩罚性措施。
A2 verb /əˈpɒlədʒaɪz/

apologize

道歉
Meaning
to say sorry for something wrong you have done
Example
He apologized for being late to the meeting.
他因迟到而道歉。
A1 noun /wɔːl/

wall

墙
Meaning
a vertical structure that encloses or divides an area
Example
The wall in our living room is painted blue.
我们客厅的墙壁被涂成了蓝色。
C2 noun/verb /læˈsuː/

lasso

套索
Meaning
a rope with a loop used to catch animals; to catch with such a rope
Example
The cowboy lassoed the horse quickly.
牛仔快速用拉索抓住了马。
B2 adjective /ˈpær.ə.lel/

Parallel

平行
Meaning
side by side and having the same distance continuously between them; similar or corresponding
Example
The two roads run parallel to each other for several miles.
这两条道路在好几英里内平行。
B1 noun /ˈspiːʃiːz/

Species

物种; 类型
Meaning
a group of living organisms that can reproduce with each other; a type or kind
Example
The Amazon rainforest is home to thousands of animal species.
亚马逊雨林是成千上万动物物种的家园。
C2 adjective/noun /ˌhaɪərəˈɡlɪfɪk/

hieroglyphic

象形文字的
Meaning
Relating to or written in hieroglyphs; symbols or writing that is difficult to understand.
Example
The archaeologists studied the hieroglyphic inscriptions carefully.
考古学家仔细研究了象形文字铭文。
A2 noun, verb /bræntʃ/

branch

分支
Meaning
A part of a tree that grows out from the trunk; a division of an organization or subject.
Example
The company opened a new branch in Dhaka.
公司在达卡开设了一个新分支。
B2 adjective /ʌnˈtʃeɪndʒɪŋ/

unchanging

不变的
Meaning
remaining the same over time; not changing
Example
Her love for her family was unchanging throughout the years.
她对家人的爱多年来始终不变。
A2 noun /ˈbʊkʃɒp/

bookshop

书店
Meaning
a retail store where books are sold
Example
She spent an hour browsing in the small bookshop.
她在那家小书店里逛了一个小时。
B1 adverb /ˌɔːl.təˈɡeð.ər/

Altogether

总共; 完全; 完整地
Meaning
completely; in total; considering everything
Example
The project cost altogether five thousand dollars.
该项目的费用总共五千美元。
B1 adjective /drʌŋk/

drunk

醉酒
Meaning
affected by alcohol to the point of losing control of one's faculties or behavior
Example
He was too drunk to walk straight.
他喝醉了，无法走直路。
C2 noun /ˈbɑːr.kəˌroʊl/

barcarole

巴尔卡罗尔
Meaning
a traditional Venetian boat song, often in 6/8 time
Example
The orchestra played a beautiful barcarole that reminded me of Venice.
乐团演奏了一首美丽的巴尔卡罗尔，令我想起了威尼斯。
C1 adverb /ˌɪn.dɪˈskrɪm.ɪ.nət.li/

Indiscriminately

无差别地
Meaning
without making careful distinctions; randomly; without discrimination
Example
The company fired employees indiscriminately without considering their performance.
公司无差别地解雇了员工，没考虑他们的表现。
A2 adjective ˈnɛɡ.ə.tɪv

negative

负面
Meaning
Not desirable or optimistic; harmful or unpleasant.
Example
She had a negative attitude about the upcoming project.
她对即将到来的项目持负面态度。
B2 adjective /ɪˈmædʒɪnəbl/

imaginable

可想象的
Meaning
Capable of being imagined or conceived.
Example
They offered every imaginable type of food at the festival.
他们在节日上提供了所有可以想象的食物类型。
C1 verb /sərˈmaʊnt/

surmount

克服
Meaning
to overcome a difficulty or obstacle
Example
He surmounted all the challenges to achieve his dream.
他克服了所有的挑战，实现了自己的梦想。
C1 adjective /ˈnɒnʃələnt/

nonchalant

Meaning
Appearing calm, casual, and unconcerned.
Example
He gave a nonchalant shrug and walked away.
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.
B2 noun /ˈfjuː.nər.əl/

Funeral

葬礼
Meaning
a ceremony typically held shortly after a person's death, usually including burial or cremation
Example
Hundreds of people attended the funeral to pay their respects to the beloved teacher.
成千上万的人参加了葬礼，向亲爱的老师致敬。
B2 noun /taɪm/

thyme

百里香
Meaning
A small aromatic herb used in cooking and medicine.
Example
She sprinkled thyme on the roasted chicken.
她撒上百里香在烤鸡上。
C2 adjective /ˌɪrɪˈlɪdʒəs/

irreligious

不信教的
Meaning
Indifferent or hostile to religion
Example
Some people in the community consider him irreligious because he never attends religious services.
社区中的一些人认为他不信教，因为他从不参加宗教服务。
A1 verb /ˈænsər/

answer

回答
Meaning
to respond to a question; to reply; to solve
Example
She will answer the phone when it rings.
她会在电话响时接电话。
C2 noun /ˈænti/

ante

Meaning
a stake put up by a player in poker or similar games before receiving cards; also used figuratively to mean an initial investment or contribution
Example
Each player placed an ante before the game began.
C1 noun /ˈɪŋklɪŋ/

inkling

预感
Meaning
A slight idea, hint, or suspicion about something.
Example
She had an inkling that he was planning a surprise.
她有一个预感，他正在计划一个惊喜。
C1 noun dɪˌtɪə.ri.əˈreɪ.ʃən

deterioration

恶化
Meaning
The process of becoming progressively worse; decline in quality, condition, or strength.
Example
Poor maintenance leads to material deterioration.
不良维护导致材料恶化。
B1 adjective /ˈdefɪnət/

Definite

明确的; 清晰的; 特定的
Meaning
clearly stated or decided; not vague or uncertain; specific
Example
We need a definite answer by tomorrow.
我们需要明天之前的确定答案。
C1 noun /ˈtɜː.mɔɪl/

turmoil

动荡
Meaning
A state of great disturbance, confusion, or uncertainty.
Example
The political turmoil led to mass protests.
政治动荡导致了大规模的抗议活动。
B2 noun /njuːˈtrɪʃ.ən/

nutrition

营养
Meaning
The process of providing or obtaining the food necessary for health and growth.
Example
Good nutrition is vital for a healthy life.
良好的营养对健康生活至关重要。
C2 verb /dɪˈmɜːr/

demur

反对
Meaning
to raise doubts, objections, or show reluctance
Example
She agreed to help without demur.
她同意在没有异议的情况下提供帮助。
C1 verb /rɪˈpʌls/

repulse

击退 / 激起反感
Meaning
to drive back an attack or attacker by force; to cause intense dislike or disgust
Example
The army managed to repulse the enemy attack.
军队成功地击退了敌人的进攻。
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。
C2 adjective /ˌkloʊs ˈhɔːld/

close-hauled

逆风航行
Meaning
of a sailing ship, sailing as nearly as possible towards the direction from which the wind is blowing.
Example
The yacht was close-hauled as it cut through the waves.
那艘游艇在波浪中紧贴风向行驶。
B1 adjective /kənˈsɪdərəbl/

considerable

相当的
Meaning
large in amount, size, or importance
Example
The project required a considerable amount of time and money.
该项目需要相当多的时间和金钱。
B2 noun/verb /ˌbærɪˈkeɪd/

barricade

障碍物
Meaning
a barrier erected to block or defend against movement; to block a passage with obstacles
Example
Protesters built a barricade across the street.
抗议者在街道上建造了一个障碍物。
B1 adjective /ˌoʊvərˈweɪt/

overweight

超重
Meaning
heavier than is considered healthy or normal
Example
The doctor advised him to lose weight as he was overweight.
医生建议他减肥，因为他超重。
B2 noun /ˈten.ʃən/

Tension

紧张
Meaning
mental or emotional strain; a strained state or condition
Example
The deadline created a lot of tension in the office.
截止日期在办公室造成了很大的紧张。
B2 verb /siːs/

cease

停止
Meaning
to bring or come to an end; to stop doing something
Example
The noise ceased as soon as the children went inside.
噪音一旦孩子们进去了就停止了。
C1 verb /rɪˈmɪt/

remit

汇款 / 免除
Meaning
To send money in payment or as a gift; to cancel or refrain from exacting a debt or punishment.
Example
He promised to remit the payment by the end of the week.
他承诺在本周末之前汇款。
C1 adjective /ˈɡræn.jʊ.lər/

granular

颗粒状
Meaning
Consisting of small grains or particles; detailed and specific.
Example
The report provided a granular analysis of the market data.
报告提供了市场数据的详细分析。
C2 noun /ˌfɪziˈɑːɡrəfi/

physiography

地貌学
Meaning
the study of the physical features of the earth's surface
Example
He specialized in physiography to understand the landscape of the region.
他专攻地貌学，以了解该地区的景观。
C2 adjective /dɛˈspɒtɪk/

despotic

专制
Meaning
exercising power in a cruel, oppressive, or authoritarian way
Example
The king’s despotic rule left the people in misery.
国王的专制统治使人民陷入了痛苦。
C1 verb /bɪˈwɪldər/

bewilder

使困惑
Meaning
to cause someone to be confused or puzzled
Example
The complex instructions bewildered the students.
复杂的指令使学生感到困惑。
C1 noun /mɪsˈɡɪvɪŋz/

misgivings

疑虑，担忧
Meaning
feelings of doubt or concern about the outcome or propriety of something
Example
She had serious misgivings about signing the contract.
她对签署合同有严重的疑虑。
C1 noun /ˌdɛfəˈmeɪʃən/

defamation

诽谤
Meaning
the act of damaging someone's reputation by making false statements
Example
The newspaper was sued for defamation of character.
该报因诽谤被起诉。
B2 noun /ˈwɔtər ˈpjʊrəˌfaɪər/

Water purifier

水净化器
Meaning
A device that removes contaminants and impurities from water to make it safe for drinking
Example
We installed a water purifier in our kitchen to ensure clean drinking water.
我们在厨房里安装了水净化器，以确保清洁的饮用水。
C1 noun /ˈprɒk.tər/

proctor

监考员
Meaning
a person who supervises students during an examination
Example
The proctor reminded students to keep their phones switched off.
监考员提醒学生关闭手机。
C2 noun /ˈɛpəlɛt/

epaulette

肩章
Meaning
A variant spelling of epaulet, also meaning a shoulder ornament, especially on military uniforms.
Example
The officer’s epaulette shone brightly under the sunlight.
军官的肩章在阳光下闪闪发光。
B1 noun /ˈsʌb.mə.riːn/

Sub-marine

潜艇
Meaning
a warship with a streamlined hull designed to operate completely submerged in the sea
Example
The submarine dived deep into the ocean to avoid detection.
潜水艇潜入海洋深处以避免被发现。
C2 verb /ˌpriːɪnˈɡeɪdʒ/

preengage

预先雇佣
Meaning
To contract or engage beforehand; to arrange in advance.
Example
The workers were preengaged before the project officially started.
项目正式开始前，工人们已被预先雇佣。
C1 verb /ˈtɑːrnɪʃ/

tarnish

Meaning
To lose luster, especially as a result of exposure to air or moisture; to damage reputation.
Example
The silver jewelry tarnished quickly when left in the open air.
C1 adjective /tɜːrs/

terse

简洁
Meaning
brief and to the point; sparing in the use of words
Example
His reply was terse and ended the conversation quickly.
他的回答简洁，迅速结束了对话。
B1 noun prəˈsiː.dʒər

procedure

程序
Meaning
An established or official way of doing something.
Example
Follow the procedure for accuracy.
按照程序进行以确保准确性。
C1 adjective dɪ ˈskrɛʃ.ən.er.i

discretionary

酌情
Meaning
Available for use at the discretion of the user; not required or mandatory.
Example
He set aside some discretionary income for travel.
他为旅行留出了一些酌情收入。
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。
C1 verb /ˈɪrɪˌɡeɪt/

irrigate

灌溉
Meaning
to supply water to land or crops; to wash out a wound with water
Example
Farmers irrigate their fields during dry seasons.
农民在干旱季节灌溉他们的田地。
B2 noun prəˈsiːdɪŋz

proceedings

程序
Meaning
An event or a series of activities involving a formal or set procedure.
Example
The proceedings discussed language issues.
程序讨论了语言问题。
A2 noun /ruːf/

roof

屋顶
Meaning
the top covering of a building or vehicle
Example
The roof of the house needs to be repaired.
房子的屋顶需要修理。
A2 noun /koʊtʃ/

coach

教练
Meaning
A person who helps improve others' skills or knowledge.
Example
The football coach motivated his team before the match.
足球教练在比赛前激励了他的队伍。
A1 noun /bɔɪ/

boy

男孩
Meaning
a male child or young male person
Example
The boy ran across the playground.
那个男孩跑过了操场。
C1 adjective /ɪnˈɛlɪdʒəbəl/

Ineligible

不合格; 不适合; 无资格
Meaning
not qualified or entitled to participate or be chosen; unsuitable
Example
Students with poor grades are ineligible for the scholarship program.
成绩差的学生不符合奖学金计划的资格。
B2 verb /ˌʌndərˈɡoʊ/

undergo

经历
Meaning
to go through something, especially something unpleasant or difficult
Example
She had to undergo surgery to recover.
她不得不接受手术以恢复。