insight
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B2 noun /ˈɪnˌsaɪt/

insight

洞察力
Meaning
The ability to understand the true nature of something; deep understanding.
Example
Her insight into human behavior made her a successful psychologist.
她对人类行为的洞察力使她成为一位成功的心理学家。
C2 adjective /ˌdaɪəˈtɒmɪk/

diatomic

双原子
Meaning
Consisting of two atoms.
Example
Oxygen is a diatomic molecule.
氧气是双原子分子。
C2 noun /ˈmɛtələ(r)dʒi/

metallurgy

冶金学
Meaning
The science and technology of metals, including their extraction from ores and their processing.
Example
Metallurgy plays a vital role in industrial development.
冶金学在工业发展中起着至关重要的作用。
B1 verb /əˈmjuːz/

amuse

逗乐
Meaning
to entertain or make someone laugh or smile; to occupy pleasantly
Example
The clown amused the children at the party.
小丑在聚会上逗乐了孩子们。
C2 adjective /ˌiːvənˈhændɪd/

evenhanded

公正无私
Meaning
Fair and impartial; showing no bias or favoritism.
Example
The judge was praised for her evenhanded approach to the case.
法官因其公正无私的案件处理方式而受到赞扬。
B2 adjective /ɪkˈstɪr.i.ər/

Exterior

外部的；外表的；外部表面
Meaning
relating to the outside part or surface of something; outer
Example
The exterior of the building was painted in bright colors.
这座建筑的外观被涂上了鲜艳的颜色。
C2 verb /rɔɪl/

roil

搅动
Meaning
to make a liquid muddy or disturbed; to cause agitation or disorder
Example
The constant protests roiled the city streets.
持续的抗议活动搅动了城市的街道。
C2 noun /ˌæk.rəˈfoʊ.bi.ə/

acrophobia

对高度的恐惧
Meaning
An extreme or irrational fear of heights.
Example
Her acrophobia prevented her from climbing the tall building.
她的恐高症阻止她爬上高楼。
C2 adjective /sərˈkjuːɪtəs/

circuitous

迂回路线
Meaning
Longer than the most direct way; roundabout.
Example
He took a circuitous route to avoid traffic.
他走了一条迂回路线以避开交通。
C2 noun /ˌrɛtəˈrɪʃən/

rhetorician

雄辩家
Meaning
A person who is skilled in the art of rhetoric or persuasive speaking/writing.
Example
The rhetorician captivated the audience with his eloquence.
雄辩家凭借其雄辩技巧吸引了听众。
A1 pronoun /ðɛər/

their

他们的
Meaning
belonging to or associated with the people or things previously mentioned
Example
Their house is on the corner.
他们的房子在角落里。
C2 noun /drʌdʒ/

drudge

苦工
Meaning
A person made to do hard, menial, or dull work.
Example
He felt like a drudge, stuck in repetitive tasks all day.
他觉得自己像个苦工，一整天都困在重复的任务中。
A2 noun ˈmuːv.mənts

movements

运动
Meaning
Organized efforts by groups of people working together to advance their shared political, social, or artistic ideas.
Example
Freedom movements paved the way for independence.
自由运动为独立铺平了道路。
C1 noun /ɪmˈbæl.əns/

Imbalance

不平衡
Meaning
lack of proportion or relation between corresponding things; unequal distribution
Example
The doctor said the patient's dizziness was caused by an inner ear imbalance.
医生说病人的头晕是由内耳不平衡引起的。
C1 adjective ɪn ˈfleɪ.ʃə.ner.i

inflationary

通货膨胀的
Meaning
Characterized by or tending to cause monetary inflation; relating to rising prices.
Example
The government took measures to control inflationary pressures.
政府采取了措施来控制通货膨胀的压力。
C2 noun /ˈkɒn.tjʊ.mə.si/

contumacy

不服从, 固执
Meaning
stubborn refusal to obey authority
Example
His contumacy led to his suspension from the council.
他的不服从导致他被从委员会中停职。
B2 noun /spæn/

span

跨度
Meaning
the full extent or length of something from one end to another
Example
The bridge has a span of over 500 meters.
这座桥的跨度超过了500米。
C1 noun /ˈhɪr.seɪ/

Hearsay

谣言
Meaning
information received from other people that one cannot adequately substantiate; rumor
Example
The accusations were based on hearsay rather than concrete evidence or eyewitness testimony.
这些指控是基于谣言，而不是确凿的证据或目击者证词。
C1 adjective /ˌʌnəˈsjuːmɪŋ/

unassuming

谦虚
Meaning
Not pretentious or arrogant; modest.
Example
Despite his success, he remained unassuming and humble.
尽管他取得了成功，他仍然谦虚和谦逊。
C2 adjective ˌmɛɡəˈlɪθɪk

megalithic

巨石
Meaning
Relating to or denoting prehistoric monuments made of or containing large stones.
Example
The megalithic structures in ancient civilizations are fascinating.
古代文明中的巨石结构令人着迷。
C1 adjective /ˌjuːnɪˈsɛljʊlər/

unicellular

单细胞
Meaning
Consisting of a single cell.
Example
Amoebas are unicellular organisms.
变形虫是单细胞生物。
B1 noun /seɪlz/

sales

Meaning
activities related to selling products or services
Example
The company saw a significant increase in sales during the holiday season.
B2 noun /ˈklʌstər/

cluster

串
Meaning
a group of similar things or people positioned close together
Example
The grapes grew in a tight cluster.
葡萄在一个紧密的串中生长。
C1 verb /ʃɜːrk/

shirk

逃避
Meaning
to avoid or neglect a duty or responsibility
Example
He always tries to shirk his responsibilities at work.
他总是尽力避免工作中的责任。
B2 noun /ˌʌnəˌveɪləˈbɪləti/

unavailability

不可用性
Meaning
The state of being not available or not accessible.
Example
The unavailability of the manager caused a delay in the project.
经理的不可用性导致了项目的延误。
C2 noun /ˈlæsi/

lassie

小女孩
Meaning
a young girl (informal, mainly Scottish)
Example
The old man greeted the little lassie warmly.
老人热情地迎接了小女孩。
C1 adjective /ˈfrɪdʒɪd/

Frigid

寒冷的; 冰冻的
Meaning
extremely cold; freezing; icy
Example
The frigid weather made it difficult to go outside.
寒冷的天气让出去变得困难。
C2 verb /ˈæpɪtaɪz/

appetize

刺激食欲
Meaning
to stimulate the appetite; to make someone eager or interested
Example
The aroma of fresh bread will appetize the guests before dinner.
新鲜面包的香味会刺激客人的食欲。
C1 noun /kənˈtɪn.ju.əns/

continuance

持续性
Meaning
the state of continuing or being prolonged; persistence
Example
The continuance of the project depended on securing additional funding.
项目的持续性依赖于确保额外的资金。
B2 verb /dɪˈtætʃ/

detach

分开
Meaning
to separate or remove something from something else
Example
She detached the page from the notebook.
她从笔记本上撕下了那一页。
A1 adjective /kwɪk/

Quick

快速
Meaning
fast; rapid; swift; happening in a short time
Example
She gave a quick answer to the teacher's question.
她对老师的问题给出了快速的回答。
B2 noun /ˈfɪzɪsɪst/

physicist

物理学家
Meaning
a scientist who studies or specializes in physics
Example
The physicist explained the theory of relativity to the students.
物理学家向学生们解释了相对论。
A2 adjective /ˈɛkstrə/

extra

额外的
Meaning
More than what is usual, expected, or necessary
Example
She brought some extra food for the picnic.
她为野餐带来了额外的食物。
A2 noun /teɪst/

Taste

味道; 个人喜好
Meaning
the sensation produced when food touches the tongue; personal preference or liking
Example
This cake has a sweet taste that I really enjoy.
这个蛋糕有一种我非常喜欢的甜味。
C1 noun /moʊt/

moat

护城河
Meaning
A deep, wide ditch surrounding a castle or town, often filled with water, for defense.
Example
The castle was protected by a wide moat filled with water.
城堡被一条充满水的宽护城河保护着。
C1 noun /ˈɡæmbɪt/

gambit

开局牺牲
Meaning
a calculated move or remark intended to gain an advantage, especially in chess or conversation
Example
His opening gambit in the debate caught everyone by surprise.
他在辩论中的开局牺牲让所有人都吃惊。
C2 noun /ˈrɛd.ə.ləns/

redolence

香气
Meaning
a pleasant smell or the quality of suggesting something strongly
Example
The redolence of jasmine filled the evening air.
茉莉花的香气充满了傍晚的空气。
C2 verb /əˈdʌltəreɪt/

adulterate

掺假
Meaning
to make something poorer in quality by adding another substance, usually of lower quality
Example
The company was fined for adulterating its products with cheap chemicals.
该公司因将其产品篡改成便宜的化学品而被罚款。
A2 noun ˈfriː.dəm

freedom

自由
Meaning
The power or right to act, speak, or think as one wants without hindrance or restraint.
Example
Freedom empowers self-expression.
自由促进自我表达。
A2 noun /pæθ/

path

小径
Meaning
a way or track laid down for walking or made by continual treading
Example
She walked along the narrow path through the forest.
她沿着森林中的小径走。
B2 adjective /ˈrɪdən/

ridden

充斥
Meaning
Full of or dominated by something unpleasant.
Example
The country was ridden with corruption.
这个国家充斥着腐败。
C1 noun /ˌɪndɪɡˈneɪʃən/

indignation

愤慨
Meaning
Strong displeasure or anger caused by something unjust, offensive, or insulting.
Example
Public indignation grew after the unfair verdict.
在不公正的裁决之后，公众的愤慨情绪上升。
C1 adjective ləˈθɑːrdʒɪk

lethargic

昏睡
Meaning
Being inactive due to lack of physical or mental energy
Example
After a heavy meal, he felt lethargic and sleepy.
吃了丰盛的晚餐后，他感到昏睡和困倦。
C2 adjective /ɪˈnɪkwɪtəs/

iniquitous

不公正
Meaning
grossly unfair and morally wrong
Example
Slavery was one of the most iniquitous practices in history.
奴隶制是历史上最不公正的实践之一。
C2 noun ˌsɜːkəmˈspekʃən

circumspection

谨慎, 避免风险
Meaning
The quality of being wary and unwilling to take risks; prudence.
Example
His circumspection ensured no mistakes were made.
他的谨慎确保没有犯错误。
C2 adjective /tʃeɪst/

Chaste

贞洁; 纯洁
Meaning
pure and morally good; abstaining from sexual activity
Example
She lived a chaste and virtuous life.
她过着纯洁而美德的生活。
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 verb /bʌdʒ/

budge

Meaning
To move slightly; to change one’s opinion or position.
Example
Despite the pressure, he refused to budge from his decision.
A1 noun /weɪ/

Way

方法；方式；道路；途径
Meaning
a method, style, or manner of doing something; a road or path
Example
There must be a better way to solve this problem.
应该有更好的方法来解决这个问题。
B2 adjective /ʌnˈfeɪθ.fəl/

Unfaithful

不忠诚
Meaning
not loyal or true to a spouse, partner, or commitment
Example
He was unfaithful to his wife for many years.
他对妻子不忠诚多年。
C1 verb /bɪˈɡɛt/

beget

导致 / 产生
Meaning
to bring about or give rise to; to father or produce
Example
Violence begets more violence.
暴力会引发更多的暴力。
B2 noun ˈɛmpəθi

empathy

同理心
Meaning
The ability to understand and share the feelings of another person.
Example
Empathy helps students connect with society.
同理心帮助学生与社会建立联系。
C1 verb /dɪˈstɪl/

distill

Meaning
To purify a liquid by heating and cooling; to extract the essential meaning or most important aspects.
Example
The factory distills water to make it safe for drinking.
A1 noun /ˈɪntənet/

internet

全球计算机网络
Meaning
A global computer network providing a variety of information and communication facilities.
Example
The internet has revolutionized the way we access information.
互联网彻底改变了我们获取信息的方式。
B1 noun /ˈhaɪdʒiːn/

hygiene

Meaning
Conditions or practices conducive to maintaining health and preventing disease.
Example
Good hygiene is essential for preventing the spread of infections.
B1 noun /piː/

Pea

豌豆
Meaning
a small round green seed eaten as a vegetable
Example
The children enjoyed eating sweet peas with dinner.
孩子们喜欢在晚餐时吃甜豌豆。
C2 verb /pərˈveɪ/

purvey

提供
Meaning
to supply or provide goods, services, or information, often as a business
Example
The company purveys organic food to health-conscious customers.
该公司向健康意识强的客户提供有机食品。
B2 noun /ˌkoʊəˈlɪʃən/

coalition

联盟
Meaning
a temporary alliance of distinct parties, persons, or states for joint action
Example
Several parties formed a coalition to pass the new law.
几个党派组成了一个联盟来通过新法律。
B2 verb /ˈsɪmbəlaɪz/

symbolize

象征
Meaning
to represent or stand for something else
Example
The dove symbolizes peace across cultures.
鸽子在不同文化中象征着和平。
C2 noun /ˈpɛntæd/

pentad

五个一组
Meaning
A group or set of five things.
Example
The committee was divided into a pentad of working groups.
委员会被分成了五个工作小组。
B2 noun /ˈproʊtəˌtaɪp/

prototype

原型
Meaning
The first model or version of something, used as a sample for testing or improvement.
Example
The company built a prototype of the new smartphone before mass production.
公司在大规模生产之前构建了新智能手机的原型。
C1 adjective /ˌdɪsɪnˈdʒɛnjʊəs/

disingenuous

虚伪的
Meaning
not candid or sincere; giving a false appearance of honesty or openness
Example
She gave a disingenuous excuse for missing the meeting.
她给出了一个虚伪的借口来错过会议。
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。
A2 adjective /waɪld/

Wild

野生的; 未驯化的
Meaning
living in natural conditions; not domesticated or cultivated; uncontrolled
Example
We saw wild animals in the forest.
我们在森林中看到了野生动物。
A2 noun /smɔːl boʊl/

Small bowl

小碗
Meaning
a round, shallow container of small size used for serving food or liquids
Example
She served the soup in a small bowl.
她把汤倒在一个小碗里。
B2 noun /kəˈlɑːʒ/

collage

拼贴画
Meaning
A piece of art made by sticking various materials such as photographs or paper onto a surface.
Example
She created a collage using old magazine pictures.
她用旧杂志的照片制作了一幅拼贴画。
B2 adjective /ɪnˈfɪə.ri.ər/

inferior

低级的
Meaning
Of lower quality, rank, or status.
Example
This material is inferior to the one we used before.
这种材料比我们之前用的差。
C2 noun /ˌsuːdəˈnɪmɪti/

pseudonymity

使用笔名
Meaning
the practice or state of using a pseudonym
Example
The author maintained pseudonymity throughout her career.
这位作者在整个职业生涯中一直使用笔名。
B2 noun/verb /bʌst/

bust

Meaning
As a noun: A sculpture of a person's head, shoulders, and chest; As a verb: To break, smash, or arrest.
Example
The police busted the gang last night.
A2 noun /ˈdʌzən/

dozen

打算
Meaning
a group of twelve
Example
She bought a dozen eggs from the market.
她从市场上买了十二个鸡蛋。
B1 noun ɡʊdz

goods

商品
Meaning
Merchandise or possessions; things that are bought and sold.
Example
The company produces high-quality goods for export.
该公司为出口生产高质量的商品。
C1 adjective /kənˈdʒenɪtl/

congenital

先天的
Meaning
existing from birth, usually describing a disease or condition
Example
The child was born with a congenital heart defect.
这个孩子出生时就有先天性心脏缺陷。
A1 noun/verb /fɪlm/

film

电影
Meaning
a motion picture or movie; or to record on camera
Example
They watched a film together on the weekend.
他们在周末一起观看了一部电影。
B2 noun /ˈɡeɪt.weɪ/

Gateway

入口; 大门
Meaning
an entrance or opening that provides access to a place; a means of achieving a particular state or condition
Example
The ancient stone gateway served as the entrance to the magnificent palace.
古老的石门作为通往宏伟宫殿的入口。
C2 noun /ˌtɜːdʒɪvərˈseɪʃən/

tergiversation

回避, 背离
Meaning
Evasion of straightforward action or speech; changing sides or being inconsistent.
Example
The politician’s tergiversation frustrated his supporters.
政治家的回避行为让他的支持者感到沮丧。
B2 noun /məˈʃiː.nər.i/

machinery

Meaning
machines collectively, or the parts of a machine; also, the system or process by which something works
Example
The factory invested in new machinery to increase production.
C2 verb /trænsˈfjuːz/

transfuse

Meaning
to transfer blood or another fluid into a vein or body part; to instill a quality or idea into someone or something
Example
The doctor had to transfuse blood into the patient after the surgery.
C1 adjective /ɪˈrɒtɪk/

erotic

色情的
Meaning
relating to or tending to arouse sexual desire or excitement
Example
The novel contained several erotic scenes.
这本小说包含了几个色情场景。
C2 adjective /ˈvælərəs/

valorous

勇敢的
Meaning
showing great courage and bravery
Example
The valorous soldier led his troop into battle without hesitation.
勇敢的士兵毫不犹豫地带领他的部队进入战斗。
A1 preposition/adverb/conjunction /bɪˈfɔːr/

before

之前
Meaning
At an earlier time; in front of in order or place.
Example
She arrived before the meeting started.
她在会议开始之前到达。
B2 noun ˌsensɪˈtɪvɪti

sensitivity

敏感性
Meaning
The quality or condition of being sensitive; responsiveness to stimuli.
Example
Bose proved plant sensitivity through experiments.
博斯通过实验证明了植物的敏感性。
B1 adjective /əˈʃeɪmd/

Ashamed

羞愧
Meaning
feeling embarrassed or guilty because of one's actions
Example
He was ashamed of his poor performance.
他为自己的糟糕表现感到羞愧。
B2 verb /fraʊn/

frown

皱眉
Meaning
to wrinkle one's brow in displeasure or concentration
Example
She frowned when she heard the bad news.
她听到坏消息时皱起了眉头。
C1 noun /pɜːrl drɒp/

Pearl drop

珍珠滴
Meaning
a single pearl used as jewelry, often in earrings or pendants
Example
The elegant pearl drop earrings complemented her outfit perfectly.
那对优雅的珍珠滴耳环与她的服装完美搭配。
B1 noun /ɡɪlt/

Guilt

罪恶感
Meaning
a feeling of having committed wrong or failed in an obligation; responsibility for wrongdoing
Example
She felt overwhelming guilt after forgetting her mother's birthday.
她在忘记母亲的生日后感到巨大的罪恶感。
B2 adjective /ˈwɜːrði/

Worthy

值得; 配得上; 尊重的;
Meaning
deserving respect or attention; having merit
Example
Her charitable work made her worthy of the humanitarian award.
她的慈善工作使她配得上人道主义奖。
A1 verb /niːd/

need

需要
Meaning
to require something; to be in want of
Example
I need help with my homework.
我需要我的作业的帮助。
C2 verb /əbˈskɒnd/

abscond

逃跑
Meaning
to leave secretly and quickly, often to avoid arrest or punishment
Example
The thief tried to abscond with the stolen jewelry.
小偷试图带着被盗的珠宝逃跑。
C1 noun /ˈtæn.ə.ri/

tannery

制革厂
Meaning
A place where animal hides are processed into leather.
Example
The tannery produced high-quality leather for export.
制革厂为出口生产高质量的皮革。
B2 noun /əˈmɛnətiz/

amenities

便利设施
Meaning
useful or pleasant facilities and services provided for comfort or convenience
Example
The hotel offers modern amenities such as free Wi-Fi and a swimming pool.
这家酒店提供现代化的便利设施，如免费Wi-Fi和游泳池。
B2 noun /siːdʒ/

siege

围攻
Meaning
A military operation in which a place is surrounded to force its surrender.
Example
The castle fell after a long siege.
城堡在长时间的围困后倒塌。
C1 noun /prɪˈtɛnʃən/

pretension

虚伪，假装
Meaning
A claim or assertion to something, often without justification; an attempt to impress by showing greater importance or talent than is actually possessed.
Example
His pretension to be an expert was quickly exposed.
他的假装是专家的伪装很快被揭穿了。
B2 adjective /suːˈpɜːrb/

superb

极好的
Meaning
extremely good; excellent
Example
The hotel provided superb service during our stay.
酒店在我们停留期间提供了极好的服务。
C1 noun, verb /ˈfɛrɪt/

ferret

雪貂, 坚持不懈地寻找或发现某物
Meaning
a small domesticated animal used for hunting; to search or uncover something persistently
Example
He ferreted out the hidden documents.
他发现了隐藏的文件。
B2 noun/adjective /ˈmɪnətʃər/ or /ˈmɪniətʃʊr/

miniature

微型版本
Meaning
a very small version of something; small in scale or size
Example
The artist created a miniature model of the castle.
艺术家制作了一个城堡的微型模型。
C1 verb /tiːm/

teem

充满
Meaning
to be full of or swarming with
Example
The forest teems with wildlife.
森林里充满了野生动物。
B2 noun /ˈmæm.əl/

mammal

哺乳动物
Meaning
A warm-blooded animal with hair or fur, and females produce milk for their young.
Example
The whale is the largest mammal on Earth.
鲸鱼是地球上最大的哺乳动物。
C2 verb /dɪˈsɛmbəl/

dissemble

假装
Meaning
to conceal one's true motives, feelings, or beliefs; to pretend
Example
He tried to dissemble his anger with a forced smile.
他试图用强颜欢笑来掩饰自己的愤怒。
B2 adjective /ˈmɪnɪməl/

minimal

最小的
Meaning
the smallest or least amount possible
Example
The damage to the car was minimal after the accident.
事故后，汽车的损坏是最小的。
C1 noun /ˈprɒfəsi/

prophecy

预言
Meaning
a prediction or message about the future, often believed to be divinely inspired
Example
The prophecy foretold the rise of a great leader.
预言预示着伟大领导者的崛起。
B2 verb /ˌriː.ɪnˈfɔːrs/

reinforce

加固
Meaning
To strengthen or support something with additional material, people, or effort.
Example
The teacher used examples to reinforce the lesson.
老师使用示例来加固这节课。
B2 noun /ˈprɛdətər/

predator

掠食者
Meaning
An animal that hunts and kills other animals for food.
Example
Lions are powerful predators in the savannah.
狮子是草原上强大的掠食者。
C1 noun, verb /tɪndʒ/

tinge

轻微的颜色或味道
Meaning
a slight added color, flavor, or feeling; to add a slight amount of color or quality
Example
Her voice was tinged with sadness.
她的声音带着一丝悲伤。
C2 noun /ɒkˈteɪvoʊ/

octavo

八开 (通过将纸张折叠成八个部分而产生的书籍大小)
Meaning
A size of book page resulting from folding a sheet of paper into eight leaves (sixteen pages).
Example
The old library contained rare octavo editions of Shakespeare.
这座古老的图书馆里有莎士比亚的稀有八开版书籍。
B2 adjective /kəmˈpʌlsəri/

compulsory

强制性
Meaning
Required by law or a rule; obligatory.
Example
Wearing seat belts is compulsory in most countries.
在大多数国家，佩戴安全带是强制性的。
A2 noun /ˈɛndɪŋ/

ending

结局
Meaning
the final part of something, such as a story, event, or period of time
Example
The movie had a surprising ending that no one expected.
这部电影有一个令人惊讶的结局，没人预料到。
B1 noun /ˈɛdɪtər/

editor

编辑
Meaning
a person responsible for the final content of a newspaper, magazine, or book
Example
The editor approved the article before publication.
编辑在出版前批准了文章。
B1 adverb /ɪˈventʃuəli/

Eventually

最终; 最后
Meaning
in the end; finally; at last
Example
After years of hard work, she eventually became a doctor.
经过多年的努力工作，她最终成了医生。
C1 noun /ɪˈrɛlɪvənsi/

irrelevancy

无关性
Meaning
the state of being unrelated or unimportant to the matter at hand
Example
The judge dismissed the argument because of its irrelevancy to the case.
法官因该论点与案件无关而将其驳回。
C2 noun /bɛk/

beck

召唤手势 / 小溪
Meaning
a gesture of beckoning; a small stream or brook (chiefly Northern English)
Example
The servant came at his master's beck and call.
仆人应主人召唤立即到来。
B2 noun /ˈhaɪdrədʒən/

hydrogen

氢气
Meaning
a colorless, odorless, highly flammable gas that is the lightest and most abundant chemical element in the universe
Example
Hydrogen is used as a clean fuel in many energy systems.
氢气在许多能源系统中作为清洁燃料使用。
C1 adjective /ˈhɛlθfəl/

healthful

有益健康的
Meaning
Promoting good health; beneficial to health.
Example
A healthful diet includes fresh fruits and vegetables.
有益健康的饮食包括新鲜的水果和蔬菜。
C1 noun ˌhaɪ.pɚˈten.ʃən

hypertension

高血压
Meaning
Abnormally high blood pressure.
Example
High sodium intake leads to hypertension.
高钠摄入会导致高血压。
C1 verb /ˈɪtəreɪt/

iterate

迭代
Meaning
To repeat a process or statement, often to improve or refine.
Example
The software team will iterate the design until it meets user needs.
软件团队将反复迭代设计，直到满足用户需求。
C2 adjective /prəˈvaɪzəri/

provisory

临时的
Meaning
conditional; depending on certain terms being met
Example
The arrangement was only provisory until the final contract was signed.
该安排只是临时的，直到最终合同签署。
B1 adverb /pəˈlaɪt.li/

Politely

礼貌地;
Meaning
in a respectful and considerate manner; courteously; with good manners
Example
She politely declined the invitation because she had other commitments.
她礼貌地拒绝了邀请，因为她有其他的承诺。
B1 noun /tɔːrtʃ/

Torch

手电筒 / 火炬
Meaning
a portable electric lamp powered by batteries; a flaming stick used for light
Example
Use the torch to find your way in the dark.
在黑暗中用手电筒来照路。
A1 verb, adjective /oʊn/

own

拥有
Meaning
to possess something; belonging to oneself
Example
She owns a beautiful house in the city.
她拥有一座漂亮的房子。
C2 noun /ˈbroʊmiːn/

bromine

溴
Meaning
a dark red, dense, toxic liquid element used in making dyes, flame retardants, and medications
Example
Bromine is commonly used in water treatment chemicals.
溴通常用于水处理化学品中。
B2 adjective /ˈfʌsi/

fussy

挑剔
Meaning
hard to please; very concerned with details
Example
The child is very fussy about what she eats.
这个孩子对她吃的东西非常挑剔。
C1 adjective /ɪmˈpɜːrviəs/

impervious

不透水的
Meaning
Not allowing fluid to pass through; unable to be affected by something.
Example
The jacket is impervious to rain.
这件夹克不透水。