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C1 noun /ˈʌlsər/

ulcer

Meaning
a sore on the skin or a mucous membrane that does not heal easily
Example
The doctor prescribed medicine to treat the stomach ulcer.
C1 noun /ˈʌp.tɜːn/

upturn

改善
Meaning
An improvement or upward trend in a situation, especially in business or economy.
Example
The company experienced an upturn in sales last quarter.
该公司在上个季度销售情况有所改善。
C1 adjective /ˈɔːrdɪnəl/

ordinal

序数
Meaning
Relating to the order or position of something in a sequence (first, second, third, etc.).
Example
The ordinal number 'third' indicates position in a sequence.
序数词'第三'表示在顺序中的位置。
C1 adjective /ˈkʌlpəbl̩/

culpable

有罪的
Meaning
deserving blame or responsibility for a wrongdoing
Example
The judge found him culpable for the accident.
法官认定他对事故负有责任。
C1 noun /ˌsəʊʃəˈbɪləti/

sociability

社交性
Meaning
The quality or state of being sociable; friendliness.
Example
Her sociability made her popular in the office.
她的社交性使她在办公室中非常受欢迎。
C1 adjective /ˈpɔːltri/

paltry

微不足道, 微小
Meaning
small or meager; lacking in value or importance
Example
They offered him a paltry sum for his work.
他们为他的工作提供了微不足道的报酬。
C1 verb /ˈlɪkwɪdeɪt/

liquidate

清算
Meaning
To sell assets in order to pay off debts; to close a business and convert assets into cash.
Example
The company decided to liquidate its assets to pay creditors.
公司决定清算其资产以支付债权人。
C1 noun /ˈhɑː.mɪ.saɪd/

Homicide

谋杀
Meaning
the deliberate and unlawful killing of one person by another; murder
Example
The detective was assigned to investigate the homicide that occurred downtown last night.
侦探被指派调查昨晚发生在市中心的谋杀案。
C1 noun /ˌpɜːrspəˈreɪʃn/

perspiration

出汗
Meaning
The process of sweating.
Example
Heavy exercise causes perspiration.
剧烈运动会引起出汗。
C1 noun /deɪˈbɑː.kəl/

debacle

灾难
Meaning
A sudden and ignominious failure; a fiasco.
Example
The company's poor management led to a financial debacle.
公司的糟糕管理导致了财政灾难。
C1 noun /əˈkuːstɪks/

acoustics

声学
Meaning
the science of sound, or the properties of a space that affect how sound is heard
Example
The hall’s excellent acoustics made the orchestra sound rich and clear.
大厅的优良声学效果让管弦乐团的声音丰富而清晰。
C1 adjective /ˈpoʊləraɪzd/

polarized

极化的
Meaning
divided into two sharply contrasting groups or opinions
Example
The debate polarized the community on the issue of climate change.
辩论使社区在气候变化问题上分裂。
C1 adjective /ɪmˈpjʊər/

Impure

不纯
Meaning
contaminated; not clean; mixed with foreign substances
Example
The impure water caused health problems in the village.
不纯的水在村庄里引起了健康问题。
C1 noun əˌkred.ɪˈteɪ.ʃən

accreditation

认证
Meaning
The action or process of officially recognizing someone or something as having a particular status or being qualified to perform a particular activity.
Example
Accreditation ensures institutional credibility.
认证确保了机构的可信度。
C1 noun /ˈʃæmbəlz/

shambles

一片混乱
Meaning
a state of complete disorder or ruin
Example
After the storm, the whole town was in shambles.
风暴过后，整个城镇陷入了一片混乱。
C1 noun /ˈtɪt.bɪt/

Titbit

一小块美味的食物; 一小段有趣的信息
Meaning
a small piece of tasty food; a small interesting piece of information
Example
She served delicious titbits at the party.
她在派对上提供了美味的小吃。
C1 noun /ˈstɪɡmə/

stigma

污名
Meaning
a mark of shame or disgrace associated with a particular circumstance or quality
Example
There is still a stigma around mental health issues in many societies.
许多社会中，心理健康问题仍然存在污名化现象。
C1 adjective /ˈlɪstləs/

listless

无精打采
Meaning
lacking energy, enthusiasm, or interest
Example
She felt listless after working long hours without rest.
她在没有休息的长时间工作后感到无精打采。
C1 noun /ˈneɪ.vəl fɔːrs/

Naval Force

海军
Meaning
the branch of a nation's armed services that conducts military operations at sea
Example
The naval force protected the country's coastline from enemy attacks.
海军保护了国家的海岸线免受敌人攻击
C1 adjective /kəˈlæpsəbl̩/

collapsible

可折叠的
Meaning
able to be folded down or reduced in size
Example
She bought a collapsible chair for camping.
她为露营买了一个可折叠的椅子。
C1 noun /ˌbaɪˈlæt.ər.əl nɪˌɡəʊ.ʃiˈeɪ.ʃənz/

bilateral negotiations

双边谈判
Meaning
Negotiations or discussions between two parties, typically countries or organizations.
Example
Bilateral negotiations resolve disputes.
双边谈判解决争议。
C1 adjective /ˌɒmnɪˈprezənt/

omnipresent

无所不在
Meaning
(of God) present everywhere at the same time.
Example
Social media has become an omnipresent force in modern society.
社交媒体已成为现代社会中无所不在的力量。
C1 noun /ˈpɪɡmənt/

pigment

颜料
Meaning
a natural or artificial substance used to give color to something
Example
The artist mixed different pigments to create the perfect shade of blue.
艺术家混合了不同的颜料，以创造出完美的蓝色阴影。
C1 adjective /nɪˈɡlɛktfʊl/

neglectful

疏忽的
Meaning
Failing to give proper care or attention.
Example
The neglectful parent left the child alone for hours.
疏忽的父母把孩子独自留下几个小时。
C1 verb /ˈʃɪmər/

shimmer

闪烁
Meaning
To shine with a soft, wavering light.
Example
The lake shimmered under the moonlight.
湖泊在月光下闪烁。
C1 noun /ˈlaɪm.stoʊn/

Lime stone

石灰岩
Meaning
a hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement
Example
The ancient building was made of limestone blocks.
这座古老的建筑是用石灰岩块建造的
C1 verb /trænˈzækt/

transact

进行交易
Meaning
to conduct or carry out business, a deal, or activity
Example
Customers can transact their banking online.
客户可以在线进行银行交易。
C1 noun /ˈɡɑːr.lənd/

Garland

花环; 花冠;
Meaning
a wreath of flowers and leaves, worn on the head or hung as decoration
Example
The bride wore a beautiful floral garland during the traditional ceremony.
新娘在传统仪式中佩戴了美丽的花环。
C1 noun /əˈkʌmplɪs/

accomplice

同谋
Meaning
a person who helps another commit a crime
Example
The thief was arrested along with his accomplice.
小偷与他的同谋一起被捕。
C1 adjective /nɪˈɡoʊ.ʃi.ə.bəl/

negotiable

可商议的
Meaning
Open to discussion or modification; capable of being bargained for.
Example
The salary offered is negotiable.
提供的薪水是可商议的。
C1 noun /ˈsəʊdiəm/

sodium

钠
Meaning
a soft, silver-white chemical element that is highly reactive and found in salt.
Example
Sodium is an essential element for maintaining fluid balance in the body.
钠是维持体内液体平衡的必需元素。
C1 noun /kənˈfɛdərəsi/

confederacy

联邦
Meaning
a group of states, people, or organizations united for a common purpose
Example
The southern states formed a confederacy during the civil war.
南方各州在内战期间组成了联邦。
C1 noun /rɪˈvɜːrʒən/

reversion

逆转
Meaning
the act of returning to a previous state or condition
Example
The new policy marked a reversion to traditional methods.
新政策标志着回归传统方法。
C1 noun /ˈmædʒɪstreɪt/

magistrate

法官
Meaning
A civil officer who administers the law, often with limited judicial authority.
Example
The magistrate presided over the minor criminal case.
法官主持了轻微刑事案件。
C1 noun ˈiː.θɒs

ethos

文化、时代或社区的特征精神
Meaning
The characteristic spirit of a culture, era, or community as manifested in its beliefs and aspirations.
Example
The company's ethos is built on innovation and integrity.
公司的文化精神建立在创新和诚信之上。
C1 noun /ˈhɒl.ə.kɔːst/

holocaust

大屠杀
Meaning
A large-scale destruction, especially by fire; historically, the genocide of Jews during World War II.
Example
Millions of people perished during the Holocaust.
在大屠杀期间，数百万人死亡。
C1 noun /ˈfren.zi/

Frenzy

狂热
Meaning
a state or period of uncontrolled excitement or wild behavior; intense activity
Example
The announcement of the sale created a shopping frenzy at the mall.
销售公告在商场引发了一场购物狂潮。
C1 noun /ˈtrɪp.lət/

triplet

三胞胎
Meaning
One of three children or animals born at the same time to the same mother.
Example
The family was surprised to have triplets instead of twins.
这个家庭很惊讶他们有三胞胎而不是双胞胎。
C1 verb /ˈoʊvərˌhɔːl/

overhaul

全面改革
Meaning
to examine thoroughly and repair or improve something that is worn or ineffective
Example
The company decided to overhaul its outdated computer system.
公司决定彻底改革其过时的计算机系统。
C1 noun /ˌænθrəˈpɒlədʒɪst/

anthropologist

人类学家
Meaning
a person who studies human societies, cultures, and their development
Example
The anthropologist spent years studying the tribal community.
人类学家花了几年时间研究部落社区。
C1 adjective /ˈsʌl.ki/

Sulky

脾气坏且沉默; 易怒
Meaning
bad-tempered and sullen; moody
Example
The child became sulky when he couldn't get his favorite toy.
孩子变得脾气坏，因为他无法得到自己最喜欢的玩具。
C1 noun /kæsˈkeɪd/

Cascade

瀑布; 一系列阶段或操作
Meaning
a waterfall; a succession of stages or operations
Example
The mountain cascade created a beautiful natural swimming pool below.
山间瀑布在下面形成了一个美丽的自然游泳池。
C1 noun /ˈɡreɪ.tər/

Grater

擦菜板
Meaning
a kitchen utensil with a rough surface for grating food into small pieces
Example
Use the grater to grate cheese for the pizza.
使用擦菜板来擦干酪做披萨。
C1 adjective ˈwɛðərpruːf

weatherproof

防水
Meaning
Able to resist or be unaffected by weather, especially rain and wind.
Example
The materials used are weatherproof, ensuring longevity.
所用材料是防水的，确保长久耐用。
C1 adjective /ˈdjuːbiəs/

dubious

可疑的
Meaning
Hesitating or doubting; not to be relied upon.
Example
She gave him a dubious look after hearing his excuse.
在听到他的借口后，她用可疑的眼神看着他。
C1 noun /əbˈdʒɛktər/

objector

反对者
Meaning
a person who expresses opposition or disapproval to something
Example
The objector raised his concerns during the town meeting.
反对者在市议会会议中表达了他的关切。
C1 verb /ˈtrɛspəs/

trespass

Meaning
to enter someone's land or property without permission
Example
He was fined for trespassing on private land.
C1 adjective /kənˈtɛmptʃuəs/

contemptuous

轻蔑的, 鄙视的
Meaning
showing or expressing contempt; scornful
Example
She gave him a contemptuous glance.
她给了他一个轻蔑的眼神。
C1 noun /kəˈθɑːrsɪs/

catharsis

情感宣泄
Meaning
The process of releasing strong emotions, providing relief.
Example
Writing in her diary was a form of catharsis for her.
在她的日记中写作对她来说是一种情感宣泄的方式。
C1 verb /piːv/

peeve

烦扰
Meaning
To annoy or irritate someone.
Example
His constant interruptions really peeve me.
他的不断打断真的让我很烦。
C1 noun/verb /ɡrʌdʒ/

grudge

Meaning
A persistent feeling of ill will or resentment from a past insult or injury.
Example
She still holds a grudge against him for what happened years ago.
C1 noun /ˈsɪndɪkət/

syndicate

辛迪加
Meaning
A group of individuals or organizations combined to promote a common interest or carry out a business venture.
Example
A syndicate of investors bought the struggling company.
一个投资者辛迪加买下了这家困难的公司。
C1 noun mælˈnʌr.ɪʃ.mənt

malnourishment

营养不良
Meaning
Lack of proper nutrition, caused by not having enough to eat, not eating enough of the right things, or being unable to use the food that one does eat.
Example
Children in poverty-stricken areas suffer from malnourishment.
贫困地区的孩子们遭受营养不良。
C1 noun /læps/

Lapse

暂时失误; 错误;
Meaning
a temporary failure of concentration, memory, or judgment; the termination of a right or privilege
Example
There was a brief lapse in security that allowed the intruder to enter the building.
安全中出现了短暂的失误，导致入侵者能够进入大楼。
C1 noun ˈmæŋɡroʊv ˈfɒrɪst

Mangrove Forest

红树林
Meaning
A coastal forest ecosystem characterized by salt-tolerant trees and shrubs that grow in intertidal zones.
Example
Sundarbans is the world's largest mangrove forest.
孙达班是世界上最大的红树林。
C1 adjective, noun /ɔːɡˈzɪliəri/

auxiliary

辅助
Meaning
(adjective) providing supplementary or additional help and support; (noun) a person or thing that provides auxiliary support
Example
The hospital has an auxiliary power generator in case of emergencies.
医院有一个备用发电机，以防紧急情况。
C1 noun /koʊlt/

Colt

小马驹
Meaning
a young male horse, especially one under four years old
Example
The farmer trained the young colt to accept a saddle.
农民训练年轻的小马驹来接受马鞍。
C1 adjective /ɪnˈɔːdəbl/

inaudible

听不见的
Meaning
Unable to be heard.
Example
Her voice was almost inaudible over the noise.
她的声音几乎在噪音中听不见。
C1 noun /ˈtʃɪz.əl/

Chisel

凿子
Meaning
a tool with a sharp flat edge used for cutting or shaping wood, stone, or metal
Example
The carpenter used a chisel to carve the wood.
木匠用凿子雕刻木头。
C1 noun kəˈmɛns.mənt

commencement

开始
Meaning
The beginning of something; a ceremony at which degrees or diplomas are conferred on graduating students.
Example
The commencement ceremony marked the start of a new journey.
开始仪式标志着新旅程的开始。
C1 noun ˌnɒn.kəʊˌɒp.ərˈeɪ.ʃən

non-cooperation

不合作
Meaning
The practice of refusing to cooperate, especially as a form of protest.
Example
The non-cooperation movement gained momentum.
不合作运动获得了动力。
C1 noun /truːs/

truce

停战
Meaning
An agreement between enemies or opponents to stop fighting for a certain time.
Example
The two countries agreed to a truce after weeks of intense fighting.
经过几周激烈的战斗后，两国同意了停战协议。
C1 noun /ɪnˈdɪf.ər.əns/

Indifference

冷漠; 漠视; 冷淡
Meaning
lack of interest, concern, or sympathy; the state of not caring about something
Example
His indifference to his studies resulted in poor grades throughout the semester.
他对学业的冷漠导致了整个学期的成绩很差。
C1 adverb /əˈlɒft/

aloft

高空
Meaning
Up in or into the air; overhead.
Example
The kite was flying aloft in the clear sky.
风筝在晴空中高飞。
C1 noun /ˌrɛs.ɪˈprɒs.ɪ.ti/

reciprocity

为了共同利益与他人交换物品的做法
Meaning
The practice of exchanging things with others for mutual benefit.
Example
Business relationships thrive on reciprocity.
商业关系依赖于互惠。
C1 noun /fɪˈnɛs/

finesse

精妙, 技巧, 高雅
Meaning
Subtlety and skill; refinement and delicacy in performance or artistry.
Example
The artist painted with great finesse.
艺术家以极高的精妙感画画。
C1 verb /ˌaʊtˈduː/

outdo

超越
Meaning
To do better than someone else; to surpass.
Example
She always tries to outdo her classmates in exams.
她总是尽力在考试中超越她的同学。
C1 adjective /ɪˈmuː.və.bəl/

immovable

不可移动
Meaning
Not able to be moved; fixed in position.
Example
Immovable barriers prevent change.
不可移动的障碍阻止了改变。
C1 noun /ˌiː.kəˈnɒm.ɪk dɪˈspær.ɪ.ti/

Economic Disparity

经济不平等
Meaning
The unequal distribution of income and opportunity between different groups in society.
Example
Addressing economic disparity is crucial for social stability.
解决经济不平等问题对社会稳定至关重要。
C1 adjective /ʌnˈsəʊʃəbl/

unsociable

不合群的
Meaning
not enjoying the company of others; avoiding social interaction
Example
He became unsociable after moving to a new city.
搬到新城市后，他变得不合群。
C1 adjective /moʊv/

mauve

浅紫色
Meaning
a pale purple color with a grayish or bluish tinge
Example
She wore a beautiful mauve dress to the party.
她穿着一件漂亮的浅紫色连衣裙参加了聚会。
C1 noun əbˈzɔːrp.ʃən

absorption

吸收
Meaning
The process or action by which one thing absorbs or is absorbed by another.
Example
Plants help in the absorption of carbon dioxide.
植物有助于吸收二氧化碳。
C1 verb, noun /sæp/

sap

树液 / 削弱
Meaning
As a noun: the vital fluid in plants; As a verb: to gradually weaken or drain strength.
Example
The long journey began to sap his energy.
长途旅行开始削弱他的能量。
C1 noun /ˈɒfʃuːt/

offshoot

分支
Meaning
A branch or result that develops from something larger or more important.
Example
The startup was an offshoot of a major tech company.
这家初创公司是一个大型科技公司分支。
C1 adjective /ˈærəbəl/

arable

可耕种的
Meaning
suitable for growing crops or farming
Example
The farmer purchased arable land to expand his crops.
农民购买了可耕种的土地，以扩大他的作物。
C1 adjective /kəmˈpleɪsənt/

complacent

自满
Meaning
showing self-satisfaction and a lack of concern about potential dangers or problems
Example
The team grew complacent after a few victories and stopped practicing hard.
团队在几场胜利后变得自满，停止了努力训练。
C1 adjective /məˈlɪɡnənt/

malignant

恶性
Meaning
dangerous or harmful in influence or effect; medically, tending to invade and destroy tissue
Example
Doctors confirmed that the tumor was malignant.
医生确认肿瘤是恶性的。
C1 noun, verb /ˈbʌtrəs/

buttress

扶壁，支撑
Meaning
a structure built against a wall for support; to support or strengthen
Example
The cathedral walls were buttressed to prevent collapse.
大教堂的墙壁被支撑以防止倒塌。
C1 noun /pəˈrɪfəri/

periphery

边缘
Meaning
The outer edge or boundary of an area or object.
Example
The soldiers were stationed at the periphery of the camp.
士兵们驻扎在营地的边缘。
C1 noun /ˌæntɪˈsiːdənts/

antecedents

前事
Meaning
previous events, conditions, or people that influence or serve as a basis for something that follows
Example
The lawyer examined the criminal antecedents of the suspect.
律师检查了嫌疑人的犯罪前事。
C1 adjective /ˈpæl.ə.tə.bəl/

palatable

可口的
Meaning
pleasant or acceptable to the taste, mind, or feelings
Example
The meal was simple but quite palatable.
这顿饭很简单，但相当可口。
C1 adjective /ˈtɪərfəl/

Tearful

泪流满面; 易哭的
Meaning
expressing or showing sadness and sorrow; inclined to weep
Example
She gave a tearful goodbye to her friends at the airport.
她在机场向朋友们告别时泪流满面。
C1 noun /ˌtrænsˈpɪəreɪʃən/

transpiration

蒸腾作用
Meaning
The process by which plants lose water through their leaves, which plays a crucial role in plant cooling, nutrient transport, and the water cycle.
Example
Transpiration plays a key role in the water cycle and plant growth.
蒸腾作用在水循环和植物生长中发挥着关键作用。
C1 verb /ˈnuːtər/

neuter

去势
Meaning
To remove the reproductive organs of an animal; or having no gender.
Example
They decided to neuter their cat to prevent more kittens.
他们决定给猫去势，以防止更多小猫的出生。
C1 adjective /ˈmæn.li/

Manly

男子气概的; 勇敢的; 大胆的
Meaning
having qualities traditionally associated with men; brave; courageous
Example
He showed manly courage during the crisis.
在危机中，他展示了男子气概的勇气。
C1 noun /ˈrɛpərˌtɔːri/

repertory

剧目
Meaning
A collection of works that a company, performer, or institution regularly performs; also a storehouse of information or skills.
Example
The theater has a repertory of classic plays.
剧院有一系列经典剧目的演出。
C1 noun /mɔːˈtæləti/

mortality

死亡率
Meaning
the state of being subject to death; the death rate of a population
Example
Advancements in medicine have reduced child mortality significantly.
医学的进步显著降低了婴儿死亡率。
C1 verb /əˈmæs/

amass

积累
Meaning
to gather together or accumulate over a period of time
Example
He managed to amass a fortune through wise investments.
他通过明智的投资成功地积累了财富。
C1 noun /traɪˈbjuːnəl/

tribunal

法庭
Meaning
a court of justice or body established to settle disputes
Example
The case was heard in an international tribunal.
案件在国际法庭审理。
C1 noun /ˈpær.ə.saɪt/

Parasite

寄生虫
Meaning
an organism that lives on or in another organism and benefits at its expense; a person who depends on others
Example
The dog was treated for intestinal parasites.
狗已经接受了肠道寄生虫的治疗。
C1 verb /ˈfɔːltər/

falter

犹豫或失去力量或动力
Meaning
to hesitate or lose strength or momentum
Example
Her voice faltered as she delivered the speech.
她的声音在演讲时颤抖。
C1 noun rɪˈdʌndənsi

redundancy

冗余，过剩
Meaning
The state of being not or no longer needed or useful; superfluousness.
Example
The redundancy in the company's workforce led to many layoffs.
公司员工中的冗余导致了大量裁员。
C1 noun kəˈlæt.ər.əl

collateral

作为贷款担保的财产
Meaning
Something pledged as security for repayment of a loan, to be forfeited in the event of a default.
Example
The bank requires collateral for loan approval.
银行要求贷款批准时提供担保物品。
C1 noun /ˈsɪvɪks/

civics

公民教育
Meaning
the study of the rights and duties of citizens and how government works
Example
Civics helps students understand their responsibilities as citizens.
公民教育帮助学生理解作为公民的责任。
C1 adjective /tɔːt/

taut

紧绷
Meaning
stretched or pulled tight; tense
Example
The rope was pulled taut between the two poles.
绳子在两个杆子之间拉得紧绷。
C1 noun /ɡɔːrd/

Gourd

葫芦
Meaning
a climbing plant with large fruits that have hard shells when dried
Example
The bottle gourd curry was delicious and nutritious.
瓶状葫芦咖喱非常美味和营养。
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。
C1 noun /pəˈrɪm.ɪ.tər/

perimeter

周长
Meaning
the continuous line forming the boundary of a closed geometric figure or area
Example
The soldiers guarded the perimeter of the camp.
士兵守卫着营地的周长。
C1 noun /ˈstaɪpend/

Stipend

津贴
Meaning
a fixed regular sum paid as a salary or allowance
Example
The research student receives a monthly stipend for living expenses.
研究生每月获得生活费用津贴。
C1 noun /dɪˈmaɪz/

demise

死亡 / 结束
Meaning
Death or end of something, especially the end of an institution or system.
Example
The sudden demise of the company shocked investors.
公司突如其来的倒闭震惊了投资者。
C1 adjective /əˈdɛpt/

adept

熟练
Meaning
Very skilled or proficient at something.
Example
She is adept at solving complex mathematical problems.
她擅长解决复杂的数学问题。
C1 noun /ˈæntlɚ/

antler

鹿角
Meaning
The branched horns on the head of a deer or similar animal, usually shed and regrown annually.
Example
The deer’s antlers grew larger each year.
鹿角每年都会变得更大。
C1 adjective /ɪnˈkɒmp(ə)rəbl/

incomparable

无可比拟
Meaning
Without an equal in quality or excellence; matchless.
Example
The view from the mountain was incomparable.
山顶的景色无可比拟。
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。
C1 adjective /ˌdɪfəˈrɛnʃəl/

differential

差异的
Meaning
Relating to or showing a difference; involving a distinction.
Example
There is a differential treatment between the two groups.
这两个群体之间存在差异待遇。
C1 noun /ˌkɒnfləˈɡreɪʃən/

conflagaration

拼写错误（来自 'conflagration'）
Meaning
This is a common misspelling of 'conflagration', which means a large, destructive fire.
Example
The term 'conflagaration' is often incorrectly used instead of 'conflagration'.
'conflagaration' 这个词常常被错误地用来代替 'conflagration'。
C1 noun /rɪdʒ/

ridge

山脊或山顶
Meaning
a long, narrow hilltop, mountain range, or raised strip
Example
We walked along the mountain ridge.
我们沿着山脊走。
C1 adjective + noun ˌpaɪəˈnɪərɪŋ ˈmɪʃən

pioneering mission

开创性任务
Meaning
A groundbreaking or innovative undertaking that leads the way in a particular field.
Example
Artemis is a pioneering mission in space exploration.
阿耳忒弥斯是一次开创性的太空探索任务。
C1 noun /trækt/

tract

地块
Meaning
an area of land; a system of organs in the body; a written pamphlet
Example
The forest tract was preserved as a wildlife sanctuary.
这片森林被保存为野生动物保护区。
C1 noun /ˈʌp.rɔːr/

Uproar

骚动; 喧嚣; 混乱
Meaning
a loud and emotional noise or disturbance; public outcry
Example
The announcement caused an uproar among the students.
公告在学生中引起了骚动。
C1 verb /prəˈlɪf.ə.reɪt/

proliferate

扩散
Meaning
To increase rapidly in numbers; to grow or spread quickly and extensively.
Example
Startups tend to proliferate in a thriving economy.
初创公司在繁荣的经济中往往会迅速扩展。
C1 noun /blɪs/

Bliss

极致的幸福；极大的喜悦
Meaning
perfect happiness; great joy
Example
She felt pure bliss while watching the beautiful sunset.
她在观看美丽的日落时感到纯粹的幸福。
C1 noun /ɛnˈdɔːr.fɪnz/

endorphins

内啡肽
Meaning
Chemical compounds produced by the brain that reduce pain and create feelings of happiness.
Example
Exercise releases endorphins, reducing stress and pain.
锻炼释放内啡肽，减轻压力和疼痛。
C1 verb /ˈdiːmɑːrˌkeɪt/

demarcate

划定
Meaning
to set the boundaries or limits of something
Example
The land was demarcated with fences to avoid disputes.
土地被围栏划定以避免争议。
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。
C1 noun /ˈtrɪlədʒi/

trilogy

三部曲
Meaning
a set of three related works, usually books or films, that form a connected story
Example
The director finally released the third film to complete the sci-fi trilogy.
导演最终发布了第三部电影，完成了这部科幻三部曲。
C1 adjective ˈvɪdʒ.ɪ.lənt

vigilant

警觉
Meaning
Keeping careful watch for possible danger or difficulties; alert and watchful.
Example
The guards remained vigilant throughout the night.
警卫整晚保持警觉。
C1 verb /ˈswɪndl/

swindle

欺骗
Meaning
to cheat someone out of money or possessions by deceit
Example
The con artist tried to swindle the old man out of his savings.
骗子试图骗取老人的储蓄。
C1 verb /ˈɪnfɪltreɪt/

infiltrate

渗透
Meaning
to secretly enter or gain access to a place or group
Example
The spies managed to infiltrate the enemy base.
间谍们设法渗透敌人基地。
C1 noun /ˈliːniənsi/

leniency

宽容
Meaning
The quality of being more merciful or tolerant than expected.
Example
The judge showed leniency in his ruling.
法官在判决中表现出宽容。
C1 noun /trænsˈɡrɛʃən/

transgression

违反, 罪行
Meaning
an act that goes against a law, rule, or code of conduct; a violation or sin
Example
The court forgave his first transgression but warned him not to repeat it.
法院原谅了他的第一次违反行为，但警告他不要重复。