protean
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C2 adjective /ˈproʊtiən/

protean

多变的
Meaning
tending or able to change frequently or easily; versatile
Example
She is a protean artist who experiments with many styles.
她是一位多变的艺术家，尝试许多不同的风格。
C2 noun /ˈlɔːŋ.ɡən/

Longan

龙眼
Meaning
a small round tropical fruit with translucent white flesh and sweet taste, related to lychee
Example
Longan fruits are often eaten fresh or dried and are popular in Asian desserts.
龙眼果通常鲜食或晒干，在亚洲甜点中很受欢迎。
C2 adjective /ɪˈmɒdɪst/

immodest

傲慢 / 不得体
Meaning
lacking humility or decency; excessively proud or improper
Example
His immodest remarks offended the audience.
他的傲慢言辞冒犯了观众。
C2 verb /ˈɡlaʊ.ər/

glower

愤怒地看
Meaning
To look at someone with an angry or sullen expression.
Example
He glowered at his rival across the room.
他愤怒地看着他在房间对面的对手。
C2 verb /dʌn/

dun

催讨债务
Meaning
to demand payment of a debt persistently
Example
The landlord dunned the tenant for unpaid rent.
房东一再催促租客支付未付款项。
C2 noun /ˈpɒlɪti/

polity

政治，政府形式
Meaning
an organized society or form of government
Example
The ancient Greek polity had a system of city-states.
古希腊的政治有一个城邦制度。
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。
C2 noun /ˈreɪləri/

raillery

友好的玩笑
Meaning
good-humored teasing or joking
Example
Their friendship was full of light-hearted raillery.
他们的友谊充满了轻松的玩笑。
C2 noun /kɪθ/

kith

亲友
Meaning
Friends, acquaintances, and relations.
Example
He invited all his kith and kin to the wedding.
他邀请了所有的亲友参加婚礼。
C2 adjective /ˈmɒtld/

mottled

斑驳的
Meaning
Marked with spots, streaks, or blotches of different shades or colors.
Example
The snake's mottled skin helped it blend into the forest floor.
蛇的斑驳皮肤帮助它融入森林地面。
C2 noun /oʊliˈændər/

Oleander

夹竹桃
Meaning
a poisonous evergreen shrub with clusters of white, pink, or red flowers
Example
The beautiful oleander flowers bloomed in the garden despite their toxic nature.
美丽的夹竹桃花在花园里盛开，尽管它们有毒。
C2 verb /ˈfɛtər/

fetter

束缚，限制
Meaning
to restrain or restrict someone’s freedom
Example
The strict rules fettered the creativity of the students.
严格的规则限制了学生们的创造力。
C2 adjective /ˈprɪɡɪʃ/

priggish

自以为是的道德主义者
Meaning
self-righteously moralistic and superior
Example
He came across as priggish when correcting everyone's manners.
当他纠正每个人的行为时，他显得很自以为是的道德主义者。
C2 adjective /baɪˈkæmərəl/

bicameral

两院制
Meaning
Having two branches or chambers, especially in a legislature.
Example
The United States has a bicameral legislature consisting of the Senate and the House of Representatives.
美国有一个两院制的立法机构，由参议院和众议院组成。
C2 noun /kɔˈrɪkə soˈbɔrnə/

Corica soborna

卡奇基鱼
Meaning
a small silvery fish species found in South Asian rivers, commonly used in local cuisine
Example
Corica soborna is a popular ingredient in traditional Bengali fish curry.
科里卡索博尔纳是传统孟加拉鱼咖喱中的一种受欢迎的配料。
C2 noun /ˈdɒldrəmz/

doldrums

Meaning
A state of inactivity, stagnation, or low spirits; also a region near the equator with calm winds.
Example
After the project failed, the team was stuck in the doldrums for months.
C2 noun /ˈdʒɛtsəm/

jetsam

从船上丢弃的无用物品，被冲到岸上的物品
Meaning
Unwanted material or goods thrown overboard from a ship and washed ashore.
Example
The beach was littered with jetsam after the storm.
风暴过后，海滩上充满了杰特萨姆。
C2 noun /ˈmʌɡwʌmp/

mugwump

独立于党派的人
Meaning
a person who remains independent from party politics or remains aloof from disputes
Example
He was called a mugwump for refusing to join either political side.
他因为拒绝加入任何政治派别而被称为马格旺普。
C2 adjective /ˈdɪsənənt/

dissonant

不和谐
Meaning
Harsh and lacking harmony; conflicting.
Example
The orchestra produced a dissonant sound during rehearsal.
乐队在排练中发出了不和谐的声音。
C2 noun /ˌdɪʃəˈbiːl/

dishabille

衣着不整
Meaning
The state of being only partly or loosely dressed; casual or careless attire.
Example
She answered the door in a state of dishabille, wearing just a robe.
她穿着睡袍以一种衣着不整的状态开了门。
C2 adjective /ˈmʌski/

musky

麝香味的
Meaning
having a strong, sweet, earthy smell like musk
Example
The perfume had a musky fragrance.
香水有一种麝香味。
C2 adjective /ˌdaɪəˈlɛktɪkəl/

dialectical

辩证
Meaning
Relating to the logical discussion of ideas and opinions.
Example
She took a dialectical approach to solve the complex issue.
她采取了辩证的方法来解决这个复杂的问题。
C2 noun /ˌθɜː.məʊˈdʒen.ɪ.sɪs/

thermogenesis

热量生产过程
Meaning
The process of heat production in living organisms, often associated with burning calories and energy expenditure.
Example
Spicy foods can enhance thermogenesis and calorie burning.
辛辣食物可以增强热生热和卡路里燃烧。
C2 adjective /ˌoʊpəˈlɛsənt/

opalescent

欧泊色的
Meaning
showing or reflecting a milky, iridescent light like an opal
Example
The opalescent sky glowed with shades of pink and blue.
欧泊色的天空闪烁着粉色和蓝色的色调。
C2 verb /əˈbeɪs/

abase

贬低
Meaning
to belittle or degrade someone
Example
He refused to abase himself before the king.
他拒绝在国王面前贬低自己。
C2 noun /pluːˈtɒkrəsi/

plutocracy

富人统治
Meaning
a system of government where the wealthy hold power
Example
The country was ruled as a plutocracy.
这个国家是由富人统治的。
C2 noun /əˈnɔɪnt.mənt/

anointment

涂抹仪式
Meaning
The act of anointing, usually with oil, as part of a ritual or ceremony.
Example
The anointment of the new leader was a sacred ritual.
新领导人的涂抹仪式是一项神圣的仪式。
C2 adjective /əˈsɜːrbɪk/

acerbic

尖刻的
Meaning
sharp, harsh, or bitter in tone or taste
Example
His acerbic comments offended many people in the meeting.
他的尖刻评论冒犯了会议中的许多人。
C2 verb /ˈræm.ɪ.faɪ/

ramify

分支
Meaning
to spread or branch out into divisions or subdivisions.
Example
The river ramifies into several smaller streams.
河流分支成多个较小的溪流。
C2 noun /ˈpɜːrkwɪzɪt raɪt/

perquisiteperquisiteright

额外福利的权利
Meaning
a legal right to certain benefits or privileges associated with a job or office
Example
The judge enjoyed certain perquisite rights attached to his position.
法官享受了与其职位相关的某些额外福利。
C2 noun /ɪnˈsɪpiəns/

incipience

开始
Meaning
the beginning or initial stage of something
Example
The project was still in its incipience when funding was approved.
当资金获得批准时，项目仍处于其开始阶段。
C2 noun /ˈɡʊrmənd/

gourmand

美食家
Meaning
A person who enjoys eating a lot or has a great appetite for food.
Example
As a true gourmand, he never missed an opportunity to try new dishes.
作为一名真正的美食家，他从不放过尝试新菜肴的机会。
C2 noun /ˈsteɪtkraft/

statecraft

治国艺术
Meaning
The art of governing and managing state affairs effectively.
Example
The leader was praised for his exceptional statecraft in handling international relations.
领导因其在处理国际关系方面的卓越治国艺术而受到赞扬。
C2 adjective /ˈstɒlɪd/

stolid

冷静的，沉默的
Meaning
Calm, dependable, and showing little emotion or animation.
Example
Despite the chaos around him, he remained stolid and composed.
尽管周围混乱，他依然冷静沉着。
C2 verb /əkˈsiːd/

accede

同意
Meaning
to agree to a request, proposal, or demand; to assume an office or position
Example
The government finally acceded to the demands of the protesters.
政府最终同意了抗议者的要求。
C2 noun /ˈsɪnəd/

synod

主教会议
Meaning
An assembly of the clergy in a Christian church convened to decide on issues of doctrine or administration.
Example
The synod gathered to discuss reforms in the church.
主教会议聚集在一起讨论教会的改革。
C2 noun /ˌɪnvəˈlɪdɪti/

invalidity

无效性
Meaning
the state of being invalid, legally void, or lacking force or validity
Example
The court ruled that the contract suffered from invalidity.
法院裁定该合同存在无效性。
C2 noun /ˈoʊpiət/

opiate

Meaning
a drug containing opium or its derivatives, used to relieve pain or cause sleep
Example
The doctor prescribed an opiate to relieve the patient's pain.
C2 noun /ˈpɜːrvjuː/

purview

范围
Meaning
the scope or range of authority, responsibility, or knowledge
Example
The case does not fall within the purview of this court.
这个案件不在这个法院的管辖范围内。
C2 noun /ˈprɛləsi/

prelacy

教主制
Meaning
The office, dignity, or system of church government by prelates.
Example
The medieval church was dominated by prelacy and its traditions.
中世纪的教会由教主制及其传统主导。
C2 noun /ˈæstər/

Aster

紫菀花
Meaning
a flowering plant with daisy-like flowers that typically bloom in fall
Example
The purple asters bloomed beautifully in the autumn garden.
紫色的紫菀花在秋天的花园里美丽地盛开。
C2 adjective /ɪnˈtræn.sɪ.dʒənt/

intransigent

固执的, 不妥协的, 不肯改变的
Meaning
Unwilling or refusing to change one's views or to agree about something.
Example
His intransigent stance delayed the agreement.
他顽固不化的立场延误了协议。
C2 noun /mɪlk raɪs/

Milk rice

牛奶饭
Meaning
A sweet dessert made from rice cooked with milk and sugar
Example
My grandmother makes delicious milk rice for special occasions.
我的祖母为特殊场合做美味的牛奶饭。
C2 verb /rɪˈspaɪər/

respire

呼吸
Meaning
To breathe in and out; to inhale and exhale.
Example
Plants also respire to release energy.
植物也呼吸以释放能量。
C2 noun /ˈtrɪp.lɪ.kət/

triplicate

三份副本
Meaning
A set of three identical copies of something.
Example
The documents were prepared in triplicate for official use.
文件为官方使用已准备成三份。
C2 noun /ˌvɪvɪˈsɛkʃən/

vivisection

在活体动物上进行手术以进行科学研究的实践
Meaning
the practice of performing operations on live animals for scientific research
Example
Vivisection has long been a controversial topic among scientists and animal rights activists.
活体解剖长期以来一直是科学家和动物权利活动家之间的一个争议话题。
C2 adjective /ˈdʒɔːnti/

jaunty

活泼
Meaning
Having a lively, cheerful, and self-confident manner or appearance.
Example
He walked into the room with a jaunty step.
他带着轻快的步伐走进了房间。
C2 noun /məˈlɑː.ti/

Malati

马拉提
Meaning
a fragrant climbing plant with small white flowers, commonly known as jasmine
Example
The malati vine covered the garden wall with sweet-smelling flowers.
马拉提藤蔓用甜美的花香覆盖了花园的墙壁。
C2 noun /ˈvɜːrdɪɡriːs/

verdigris

铜绿
Meaning
A green or bluish deposit that forms on copper, brass, or bronze surfaces due to oxidation.
Example
The old statue was covered in verdigris after years of exposure to the rain.
那座古老的雕像在多年暴露于雨水中后，覆盖了一层铜绿。
C2 noun /ˌhɛtərəʤəˈniːɪti/

heterogeneity

异质性
Meaning
the quality or state of being diverse in character or content
Example
The cultural heterogeneity of the city makes it vibrant and unique.
这座城市的文化异质性使其充满活力且独特。
C2 adjective /ˈɒpjʊlənt/

opulent

奢华的
Meaning
Ostentatiously rich, luxurious, or lavish.
Example
They hosted an opulent wedding with gold decorations.
他们举办了一场奢华的婚礼，装饰有金色装饰品。
C2 noun /ˈpɛdɪmənt/

pediment

三角山墙
Meaning
a triangular gable found above the horizontal structure of a building, often in classical architecture
Example
The ancient temple had a pediment decorated with sculptures.
古老的寺庙有一个装饰着雕塑的山墙。
C2 noun /ˈdɛθsˌhɛd/

deaths-head

骷髅
Meaning
A representation of a human skull, often used as a symbol of death.
Example
The pirate flag was marked with a grim deaths-head.
海盗旗上标有一个恐怖的骷髅。
C2 noun /ˈpoʊltɪs/

poultice

温暖的草药敷料
Meaning
a soft, moist mass of material applied to the body to relieve soreness and inflammation
Example
The nurse applied a warm poultice to his injured leg.
护士把温暖的敷料敷在他受伤的腿上。
C2 noun /æbˈsɪʒən/

abscission

叶片脱落
Meaning
The natural detachment of parts of a plant, typically leaves or fruit.
Example
The autumn season is marked by the abscission of leaves from trees.
秋季的标志是树叶从树木上脱落。
C2 verb /ˌdɛlɪˈkwɛs/

deliquesce

通过吸收空气中的水分变为液体
Meaning
to become liquid by absorbing moisture from the air
Example
The salt began to deliquesce after being left in the humid room.
盐开始在潮湿的房间里变成液体。
C2 noun /ˈmɪs.kri.ənt/

Miscreant

恶棍; 罪犯
Meaning
A person who behaves badly or illegally; a villain or criminal
Example
The miscreant was caught stealing from the store.
这个恶棍在商店偷东西时被抓住了。
C2 noun /ˈbælæst/

ballast

压舱物
Meaning
heavy material used to stabilize a ship or vehicle
Example
The ship was loaded with ballast to remain steady in the storm.
船只装载了压舱物，以便在风暴中保持稳定。
C2 noun /əˈfleɪtəs/

afflatus

神圣的灵感
Meaning
a sudden divine inspiration or creative impulse
Example
The poet wrote the verses under a sudden afflatus of inspiration.
诗人在突然的神圣灵感下写下了诗句。
C2 noun /ˌpænəˈdʒɪrɪk/

panegyric

赞美诗, 颂辞
Meaning
a formal speech or piece of writing in praise of someone or something
Example
The author wrote a panegyric on the bravery of the soldiers.
作者写了一篇关于士兵英勇的潘尼吉里克。
C2 verb /ˈbɪloʊ/

billow

像波浪一样膨胀
Meaning
To swell or rise in large waves or surges; to flow outward in a rolling motion.
Example
Smoke billowed from the burning building.
烟雾像波浪一样从燃烧的建筑中升腾而起。
C2 adjective /rɪˈdaʊ.tə.bəl/

redoubtable

可怕/值得尊敬
Meaning
formidable, especially as an opponent; inspiring fear or respect
Example
She was a redoubtable leader who commanded respect from all.
她是一个可怕的领导，赢得了所有人的尊重。
C2 noun /noʊl/

Knoll

小山丘；土堆
Meaning
a small rounded hill or mound
Example
The old oak tree stood majestically on top of the grassy knoll.
那棵老橡树雄伟地站在覆盖着草的小山丘上。
C2 adjective /ʌnˈwəʊntɪd/

unwonted

不寻常
Meaning
Unusual, uncommon, or out of the ordinary.
Example
She spoke with an unwonted gentleness that surprised everyone.
她以一种不寻常的温柔说话，令所有人都感到惊讶。
C2 noun /ˈklaɪmɪŋ fɪʃ/

Climbing-fish

爬树鱼
Meaning
a type of fish that can climb trees and survive out of water for short periods
Example
The climbing-fish can move from one pond to another by climbing trees.
爬树鱼可以通过爬树从一个池塘移动到另一个池塘。
C2 noun /əˈfreɪ/

affray

公开斗殴
Meaning
A public fight or noisy disturbance that causes alarm.
Example
The police were called to break up an affray outside the stadium.
警方被叫去制止体育场外的一场打斗。
C2 noun /prəˈfʌn.dɪ.ti/

profundity

深度或洞察力
Meaning
Deep insight; great depth of knowledge or thought.
Example
The profundity of his words left a lasting impact.
他的话深度留下了持久的影响。
C2 adjective /ˈhiːðənɪʃ/

heathenish

野蛮
Meaning
Lacking culture or religion; barbaric or uncivilized.
Example
They considered the ancient tribe’s rituals heathenish.
他们认为古老部落的仪式是野蛮的。
C2 verb /deɪn/

deign

不屑做某事
Meaning
to do something considered beneath one's dignity
Example
The king did not deign to reply to the commoner.
国王没有屈尊回应平民。
C2 adjective /haɪˈbɜːrnəl/

hibernal

Meaning
Relating to or occurring in winter.
Example
The hibernal season is often harsh in the mountains.
C2 noun /ˌluː.mɪˈnɛs.əns/

luminescence

发光现象
Meaning
The emission of light by a substance not resulting from heat; a type of cold light.
Example
The luminescence of the fireflies lit up the forest.
萤火虫的发光现象照亮了森林。
C2 verb /ʌnˈkloʊð/

unclothe

脱衣; 脱掉衣服
Meaning
to remove clothing from someone or something
Example
The nurse helped unclothe the patient for the examination.
护士帮助病人脱衣进行检查。
C2 noun /əˈplɒm/

aplomb

Meaning
Complete and confident self-assurance or poise.
Example
She handled the difficult questions with aplomb.
C2 adjective /ˈplændʒənt/

plangent

悲伤或回响的声音
Meaning
having a loud, mournful sound; resonant
Example
The plangent toll of the church bell echoed through the village.
教堂钟声的悲鸣回荡在村庄里。
C2 verb /fɪltʃ/

filch

偷
Meaning
to steal something in a sneaky or petty way
Example
He tried to filch a candy bar from the shop.
他试图从商店偷一块糖果。
C2 noun /ˈɔːspɪs/

auspice

预兆, 保护
Meaning
A sign, omen, or divine token; also refers to protection or support.
Example
The project was launched under the auspice of the government.
该项目在政府的保护下启动。
C2 noun /kəˈbɑːdi/

kabadi

废品收购者
Meaning
a person who collects and sells scrap or recyclable materials, especially in South Asia
Example
The kabadi came every week to collect old newspapers and bottles.
废品收购者来收集旧物品。
C2 noun /ˌkæv.əlˈkeɪd/

cavalcade

盛大队列
Meaning
a formal procession of people riding on horses or in vehicles
Example
The king’s arrival was marked by a grand cavalcade.
国王的到来标志着一场盛大的队列。
C2 adjective /ˈeksɪkrəbl/

execrable

可憎的
Meaning
Extremely bad or unpleasant.
Example
The movie was so execrable that many people left the theater early.
这部电影糟糕透顶，以至于许多人早早就离开了影院。
C2 noun /nɪt/

nit

虱子卵
Meaning
The egg or young form of a louse or other parasitic insect.
Example
The teacher noticed nits in the child’s hair.
老师发现了孩子头发里的虱子卵。
C2 verb /ˈɑːblɪˌɡeɪt/

obligate

强迫
Meaning
to bind legally or morally; to compel someone to do something
Example
The contract obligates the company to provide timely service.
合同使公司有义务提供及时服务。
C2 adjective /ˌdɒktrɪˈnɛər/

doctrinaire

教条主义者
Meaning
stubbornly devoted to a theory or doctrine without regard to practical considerations
Example
His doctrinaire approach to politics alienated many supporters.
他对政治的教条主义方法使许多支持者感到疏远。
C2 noun /sɪˈnɛrəsɪs/

syneresis

协同作用
Meaning
The contraction of two adjacent vowels into a single syllable or the separation of liquid from a gel.
Example
The yogurt showed syneresis when liquid separated on top.
当液体在上面分离时，酸奶表现出协同作用。
C2 verb /ɪnˈtræp/

entrap

Meaning
To catch or trick someone into a difficult situation.
Example
The police tried to entrap the criminal with false evidence.
C2 verb /pɔːrˈtɛnd/

portend

预示
Meaning
To be a sign or warning that something, especially something bad, is going to happen.
Example
Dark clouds portend a storm.
暗云预示着暴风雨。
C2 verb /ɛkˈskɔːrieɪt/

excoriate

严厉批评
Meaning
To strongly criticize someone; to denounce severely.
Example
The critic excoriated the film for its poor script.
评论家因影片的糟糕剧本而严厉批评了该片。
C2 adjective /rɪˈkʌmbənt/

recumbent

躺着
Meaning
lying down or in a resting position
Example
He was found recumbent on the sofa after a long day.
他在长时间的一天后被发现躺在沙发上。
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。
C2 adjective /raɪˈpɛə.ri.ən/

riparian

位于河流或其他水道的岸边或与之相关的
Meaning
Relating to or situated on the banks of a river or other watercourse.
Example
Riparian vegetation helps prevent soil erosion along rivers.
河岸植被有助于防止河流沿岸的土壤侵蚀。
C2 noun /ˈsækrɪsti/

sacristy

圣器室
Meaning
a room in a church where sacred vessels and vestments are kept
Example
The priest entered the sacristy before the mass began.
神父在弥撒开始前进入了圣器室。
C2 adjective /ˌsuːpərˈnuːmərɛri/

supernumerary

额外的
Meaning
Exceeding the usual number; extra or unnecessary.
Example
The play included several supernumerary actors to fill the background scenes.
这出戏包含了几个额外的演员来填充背景场景。
C2 adjective /ɪˈfjuːsɪv/

effusive

溢于言表的
Meaning
Expressing feelings of gratitude, pleasure, or approval in an unrestrained or heartfelt manner.
Example
She gave him an effusive welcome after his long journey.
在她漫长的旅程后，她给了他一个溢于言表的欢迎。
C2 adjective /ɪnˈæpt/

Inapt

不合适; 不适当
Meaning
not suitable; inappropriate; unfit
Example
His comment was inapt for the formal meeting.
他的评论对正式会议不合适。
C2 noun /ˈbʌskɪn/

buskin

厚底靴
Meaning
A type of thick-soled boot that reaches halfway to the knee; also associated with tragic drama in ancient times.
Example
The actor wore a buskin as part of his classical costume.
那位演员穿着巴斯金鞋子作为他经典服装的一部分。
C2 adjective /ˌɪnkɔːrˈpɔːriəl/

incorporeal

无形的
Meaning
lacking a physical body; not composed of matter; intangible
Example
Ghosts are often described as incorporeal beings.
鬼魂常被描述为无形的存在。
C2 noun /ˌɑːrbəˈriːtəm/

arboretum

植物园
Meaning
a place where trees, shrubs, and plants are grown for scientific study or public display
Example
We visited the city’s arboretum to learn about exotic trees.
我们参观了城市的植物园，了解异国树木。
C2 adjective /ʌnˈspɛərɪŋ/

unsparing

无情的
Meaning
Showing no mercy or generosity; harsh or severe.
Example
The critic was unsparing in his review of the play.
评论家在他的剧评中毫不留情。
C2 noun /ˈsɜːrklət/

circlet

Meaning
A small circular band, typically worn as an ornament on the head.
Example
The princess wore a golden circlet on her forehead.
C2 adjective /ˌpɑːrsɪˈmoʊniəs/

parsimonious

吝啬
Meaning
unwilling to spend money or use resources; stingy
Example
The company was too parsimonious to invest in better equipment.
公司太吝啬，无法投资更好的设备。
C2 noun /vɪm/

vim

活力
Meaning
energy and enthusiasm
Example
She performed the dance with great vim and vigor.
她充满活力和热情地表演了这支舞蹈。
C2 noun /ˈkɪləˌliːtər/

kiloliter

千升
Meaning
a unit of capacity equal to 1,000 liters
Example
The tank can hold up to three kiloliters of water.
水箱最多可容纳三千升水。
C2 adjective /sɛnˈtɛnʃəs/

sententious

道德主义的；说教的
Meaning
Given to moralizing in a pompous or affected manner.
Example
His sententious remarks annoyed the audience.
他的道德主义言论让观众感到厌烦。
C2 noun /ˈbræɡərt/

braggart

吹牛者
Meaning
a person who boasts about achievements or possessions
Example
No one liked him because he was such a braggart.
没有人喜欢他，因为他是个吹牛者。
C2 adjective /ˈpruːdɪʃ/

prudish

过于拘谨的
Meaning
having or revealing a tendency to be easily shocked by matters relating to sex or nudity
Example
She was too prudish to watch the movie with her friends.
她太拘谨了，不愿和朋友一起看电影。
C2 adjective /ʌnˈflɛdʒd/

unfledged

未经训练的
Meaning
Inexperienced, immature, or not fully developed.
Example
The unfledged writer struggled to complete his first novel.
这个未经训练的作家难以完成他的第一本小说。
C2 noun /ˌkɒzməˈpɒlɪtənɪzəm/

cosmopolitanism

国际主义
Meaning
the ideology that all human beings belong to a single community
Example
Cosmopolitanism promotes respect and understanding across cultures.
国际主义促进不同文化之间的尊重和理解。
C2 noun /ɪˈluːmɪnənt/

illuminant

光源
Meaning
A substance or device that produces light.
Example
The lamp acted as an illuminant in the dark cave.
这盏灯在黑暗的洞穴中充当了光源。
C2 adjective /ˈwɪnsəm/

winsome

迷人
Meaning
pleasant and attractive in a fresh, innocent, or charming way
Example
Her winsome smile instantly put the nervous guests at ease.
她迷人的微笑立即让紧张的客人感到放松。
C2 adjective /ˌækrəˈmætɪk/

achromatic

无色的
Meaning
without color; free from color
Example
The designer chose an achromatic palette of black, white, and gray.
设计师选择了黑色、白色和灰色的无色调色板。
C2 verb, adjective /ˈstraɪeɪt/

striate

条纹
Meaning
to mark with stripes or grooves; striped or streaked in appearance
Example
The rock surface was striated by glacial movement.
岩石表面因冰川运动而被划出条纹。
C2 noun /proʊˈsiː.ni.əm/

proscenium

舞台前沿
Meaning
the part of a theater stage in front of the curtain; the arch framing the stage
Example
The actors bowed at the proscenium before leaving the stage.
演员在离开舞台之前向舞台前沿鞠躬。
C2 adverb /ˈɡeɪmli/

gamely

勇敢地
Meaning
in a brave, spirited, or determined manner
Example
She gamely accepted the challenge despite the difficulties.
尽管有困难，她勇敢地接受了挑战。
C2 noun /ˈpɛd.ən.tri/

pedantry

对小细节或规则的过度关注
Meaning
Excessive concern with minor details or rules.
Example
His pedantry made the meeting unnecessarily long.
他的偏执让会议变得不必要地漫长。
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。
C2 noun /dɪˈklɪvɪti/

declivity

坡度
Meaning
a downward slope of ground
Example
They carefully climbed down the declivity of the hill.
他们小心地爬下了山坡。
C2 adjective /ˈbrækɪʃ/

brackish

咸淡水
Meaning
Slightly salty, often describing water that is a mix of fresh and seawater.
Example
The river estuary contained brackish water.
河口含有咸淡水。
C2 adjective /ˌʌnprəˈpɪʃəs/

unpropitious

不利
Meaning
Not giving or indicating a good chance of success; unfavorable.
Example
The team began their journey under unpropitious weather conditions.
团队在不利的天气条件下开始了他们的旅程。
C2 noun /ˈfɔːltˌfaɪndər/

faultfinder

找茬者
Meaning
a person who habitually finds fault with others
Example
He is such a faultfinder that nothing anyone does is ever good enough.
他是一个找茬者，任何人做的事情都永远不够好。
C2 adjective /ˈfætʃuəs/

fatuous

愚蠢
Meaning
silly or foolish, especially in a self-satisfied way
Example
His fatuous comments during the meeting annoyed everyone.
他在会议中的愚蠢评论让所有人都感到烦恼。
C2 adjective /kɒnˈsæŋɡwɪn/

consanguine

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

pachyderm

具有厚皮的大型哺乳动物
Meaning
a large mammal with thick skin, such as an elephant, rhinoceros, or hippopotamus
Example
The zoo had several pachyderms, including elephants and rhinos.
动物园里有几只厚皮兽，包括大象和犀牛。