dastard
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C2 noun /ˈdæstərd/

dastard

懦夫
Meaning
a cowardly or dishonorable person
Example
Only a dastard would betray his closest friend.
只有懦夫才会背叛自己最亲密的朋友。
C2 adjective /həˈrɛtɪkəl/

heretical

异端
Meaning
Relating to or characterized by departure from accepted beliefs or standards, especially in religion.
Example
The priest condemned the book as heretical.
牧师将这本书谴责为异端。
C2 noun /təˈmɛrɪti/

temerity

鲁莽
Meaning
Excessive confidence or boldness; audacity.
Example
He had the temerity to challenge the professor’s argument.
他居然有胆量挑战教授的论点。
C2 adjective /ˈfjuːzəbl/

fusible

可熔化的
Meaning
Capable of being melted or fused.
Example
The engineer used a fusible alloy in the experiment.
工程师在实验中使用了可熔化的合金。
C2 noun /ˌɑːrtʃˈdiːkən/

archdeacon

大执事
Meaning
A senior clergyman in the Christian Church ranking below a bishop.
Example
The archdeacon assisted the bishop in administrative duties.
大执事协助主教完成行政事务。
C2 noun /ˈbreɪziər/

Brazier

黄铜工人
Meaning
a worker in brass; a portable container for burning charcoal or coal
Example
The brazier crafted beautiful brass ornaments.
这个黄铜工人制作了美丽的黄铜饰品。
C2 adjective /ˈɪl bred/

Ill-bred

无教养的
Meaning
lacking good manners; rude; showing poor upbringing
Example
His ill-bred behavior shocked everyone at the dinner party.
他的无教养行为让晚宴上的每个人都震惊。
C2 adjective /ˈfraʊzi/

frowzy

邋遢
Meaning
Unkempt, messy, or having a musty, unpleasant smell.
Example
He entered the room with a frowzy appearance after sleeping on the couch.
他在沙发上睡觉后，以邋遢的外貌走进了房间。
C2 verb /ˈɒsɪfaɪ/

ossify

骨化
Meaning
to turn into bone or become rigid and inflexible
Example
With age, some tissues tend to ossify.
随着年龄的增长，一些组织会变得僵硬。
C2 noun /koʊˈæɡjələnt/

coagulant

凝血剂
Meaning
a substance that causes blood or another liquid to clot
Example
The doctor applied a coagulant to stop the bleeding quickly.
医生使用了凝血剂来迅速止血。
C2 adjective /ˈstraɪ.eɪ.tɪd/

striated

条纹的
Meaning
marked with thin lines, grooves, or stripes
Example
The muscle fibers appeared striated under the microscope.
在显微镜下，肌肉纤维看起来是条纹的。
C2 adjective /ˌæntɪməˈrɪdiən/

antemeridian

中午前的时间
Meaning
Relating to the time before noon; occurring in the morning.
Example
She scheduled all her important meetings during the antemeridian hours.
她安排了所有重要的会议在中午前的时间。
C2 verb /ɪnˈθrɔːl/

enthral

吸引
Meaning
To captivate or hold someone’s full attention.
Example
The magician’s performance enthralled the audience.
魔术师的表演让观众着迷。
C2 adjective /ˈɡluː.tɪ.nəs/

glutinous

粘性
Meaning
Having a sticky or glue-like texture.
Example
The glutinous rice stuck together in the pot.
粘性米饭在锅里粘在一起了。
C2 adjective /ˈrɛɡnənt/

regnant

在位
Meaning
Reigning; currently holding power, authority, or dominance.
Example
The regnant queen introduced several reforms during her reign.
在位的女王在她的统治期间进行了几项改革。
C2 verb /ˈdɛpjʊˌtaɪz/

deputize

任命为副职
Meaning
To appoint someone as a deputy; to act as a substitute or representative.
Example
The sheriff decided to deputize several locals to help maintain order.
治安官决定指派几位当地人以帮助维持秩序。
C2 noun /lɔːŋ ˈpepər/

Long pepper

长胡椒
Meaning
a flowering vine in the family Piperaceae, cultivated for its fruit which is used as a spice
Example
Long pepper was more valuable than black pepper in ancient times.
长胡椒在古代比黑胡椒更有价值。
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 verb, noun /ɡaʊdʒ/

gouge

挖掘，漫天要价
Meaning
To cut or scoop out a deep hole or groove; to overcharge unfairly.
Example
He accidentally gouged a hole in the wooden table.
他不小心在木桌子上挖了个洞。
C2 verb /ˌpriːɪˈstæblɪʃ/

preestablish

预先设定
Meaning
To establish or set up beforehand.
Example
Certain rules were preestablished before the meeting.
在会议之前，一些规则已经预先设定。
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 adjective /kənˈdʒɛktʃərəl/

conjectural

推测的
Meaning
based on guesswork or incomplete evidence rather than certain knowledge
Example
His explanation was purely conjectural and lacked proof.
他的解释完全是推测性的，缺乏证据。
C2 adjective /ˈswɔːrði/

swarthy

黝黑的
Meaning
Having a dark complexion or skin tone.
Example
The sailor had a swarthy face from years under the sun.
那个水手的脸因为多年在阳光下工作而变得黝黑。
C2 noun /ˈiːɒn/ or /ˈiːən/

aeon

Meaning
An indefinitely long period of time; an age or eternity.
Example
Dinosaurs roamed the Earth millions of aeons ago.
C2 adjective /rɪˈmɪs/

remiss

疏忽
Meaning
Negligent in performing a duty or responsibility.
Example
The manager was remiss in not checking the financial reports carefully.
经理在没有仔细检查财务报告时疏忽了。
C2 noun /ɪˈfʌldʒəns/

effulgence

光辉
Meaning
Brilliant radiance or shining brightness.
Example
The effulgence of the sunrise lit up the entire valley.
日出的光辉照亮了整个山谷。
C2 verb /dɪˈbɔːtʃ/

debauch

堕落
Meaning
to corrupt morally; to lead into excessive indulgence in sensual pleasures
Example
The novel shows how wealth can debauch a person's character.
小说展示了财富如何败坏一个人的品格。
C2 adjective /ˌbækəˈneɪliən/

bacchanalian

与酗酒相关的
Meaning
Characterized by or involving drunken revelry.
Example
The students threw a bacchanalian party after the exams.
学生们在考试后举办了一场与酗酒相关的派对。
C2 noun /ɪkˈskrɛsəns/

excrescence

异常生长
Meaning
An abnormal outgrowth or lump, often considered unattractive.
Example
The building was considered an excrescence on the landscape.
这座建筑被认为是景观中的一种异常生长。
C2 noun /kəmˈpɛndiəm/

compendium

汇编
Meaning
A collection of concise but detailed information about a subject.
Example
The book is a compendium of ancient myths and legends.
这本书是关于古代神话和传说的汇编。
C2 adjective /ˈwiːk niːd/

weak-kneed

胆小
Meaning
Lacking determination or courage; easily frightened or yielding.
Example
The leader was criticized for being weak-kneed in the face of opposition.
领导者因在面对反对时胆小而受到批评。
C2 verb /ˈpælieɪt/

palliate

缓解
Meaning
to make a disease, symptoms, or problem less severe without removing the cause
Example
The doctor prescribed medicine to palliate the patient's pain.
医生开药来缓解病人的疼痛。
C2 noun /kwiːn kreɪp ˈmɜːrtəl/

Queen crape myrtle

皇后夹竹桃
Meaning
A flowering tree with colorful, crepe-like flowers, scientifically known as Lagerstroemia
Example
The Queen crape myrtle bloomed beautifully in the garden with its purple flowers.
皇后夹竹桃在花园里盛开，紫色的花朵美丽地绽放。
C2 noun /ˈoʊ.kəm/

oakum

旧绳纤维
Meaning
loose fibers obtained by untwisting old ropes, used for caulking ships
Example
The shipbuilders used oakum to seal the gaps in the wooden planks.
造船工人使用欧卡姆来密封木板之间的缝隙。
C2 noun /ˈkjʊriˌoʊ/

curio

奇特物品
Meaning
a small unusual or interesting object, often collected for its rarity
Example
She bought a curio from the antique shop.
她从古董店买了一个奇特物品。
C2 noun /ˌɪnsəˈrɛkʃən/

insurrection

起义
Meaning
A violent uprising against an authority or government.
Example
The army was called in to suppress the insurrection.
军队被召来镇压起义。
C2 adjective /paɪd/

pied

花色的
Meaning
having two or more different colors, typically in blotches
Example
The pied cat had black and white patches all over its body.
这只斑猫身上有黑白色的斑点。
C2 adjective /ɡrænˈdɪləkwənt/

grandiloquent

夸张的语言
Meaning
Using lofty, pompous, or extravagant language to impress others.
Example
The politician’s grandiloquent speech failed to connect with ordinary people.
这位政治家的夸张演讲未能与普通人产生共鸣。
C2 verb /ˌkɒntrəˈvɜːrt/

controvert

反驳
Meaning
to dispute or argue against; to contradict
Example
The scientist controversed the previous research findings.
科学家反驳了之前的研究结果。
C2 adjective /ˌstaʊtˈhɑːrtɪd/

stouthearted

勇敢
Meaning
Brave, determined, and courageous
Example
The stouthearted soldier never gave up.
勇敢的士兵从不放弃。
C2 noun /ˈbɪɡ.ə.mɪst/

bigamist

重婚罪犯
Meaning
A person who commits the crime of marrying someone while already married to another.
Example
The man was arrested for being a bigamist.
这个人因大婚而被逮捕。
C2 adjective /ɑːlˈfæktəri/

olfactory

Meaning
Relating to the sense of smell.
Example
The perfume activated her olfactory nerves immediately.
C2 verb /sɛkˈstuːpəl/

sextuple

六倍增加
Meaning
to make or become six times as great or as many
Example
Within two quarters, the campaign sextupled their daily sign-ups.
在两个季度内，活动的日常注册人数增加了六倍。
C2 noun /ˌbaɪ.oʊ.rɪˌmiː.diˈeɪ.ʃən/

bioremediation

生物修复
Meaning
The use of living organisms to neutralize or remove environmental contaminants.
Example
Bioremediation helps remove toxins from polluted soil.
生物修复帮助清除污染土壤中的毒素。
C2 adjective /ˌsuːprəˈmʌndeɪn/

supramundane

超世俗
Meaning
beyond the physical or ordinary world; transcendent
Example
The monk spoke of supramundane peace beyond material life.
和尚讲述了超越物质生活的超世俗的平静。
C2 noun, verb /ˈfɪlɪˌbʌstər/

filibuster

通过长时间演讲延迟立法行动的策略；使用这种策略
Meaning
a tactic of delaying legislative action by prolonged speech; to use such a tactic
Example
The senator filibustered for hours to prevent the bill from passing.
参议员费利巴斯特了几个小时，以阻止该法案通过。
C2 verb /ˈɪndjʊˌreɪt/

indurate

使坚硬
Meaning
To harden or make something physically or emotionally tough.
Example
Years of hardship indurated his spirit.
多年的艰辛使他的精神变得坚韧。
C2 noun /ˈɪl.i.æd/

iliad

伊利亚特
Meaning
An ancient Greek epic poem attributed to Homer, describing the events of the Trojan War.
Example
Students studied the Iliad to understand Greek mythology and heroism.
学生们学习了《伊利亚特》，以理解希腊神话和英雄主义。
C2 noun /ˈrɛtɪnjuː/

retinue

随行人员
Meaning
A group of attendants or followers accompanying an important person.
Example
The king entered the hall followed by his retinue.
国王带着随行人员进入了大厅。
C2 adverb /əˈbæk/

Aback

吃惊的
Meaning
by surprise; unexpectedly
Example
I was taken aback by his sudden announcement.
我被他突然的宣布吓到了。
C2 noun /ˈɪkθiəˌsɔːrz/

ichthyosaurs

鱼龙（已灭绝的海洋爬行动物）
Meaning
Extinct marine reptiles that resembled fish and dolphins, dominant during the Mesozoic era.
Example
Ichthyosaurs were swift predators of the ancient seas.
鱼龙是古代海洋的迅猛掠食者。
C2 noun /ˌdɪskwɪˈzɪʃən/

disquisition

论文
Meaning
A long or elaborate discussion or written essay on a particular subject.
Example
The professor gave a lengthy disquisition on ancient philosophy.
教授就古代哲学进行了长篇论文。
C2 adjective /ˈpɛneɪt/

pennate

羽毛状的
Meaning
Having parts or structures arranged like a feather; feather-shaped.
Example
The fern has a pennate leaf structure.
蕨类植物的叶片结构是羽毛状的。
C2 adjective /rɪˈmiːdiəbl/

remediable

可修复的
Meaning
capable of being corrected or cured
Example
The mistake was serious but still remediable.
这个错误很严重，但仍然是可修复的。
C2 noun /ˌdaɪvəˈɡeɪʃən/

divagation

偏离
Meaning
digression; wandering from a path or subject
Example
His lecture was full of divagation, making it hard to follow the main point.
他的演讲充满了偏离主题的内容，使得很难跟上主要论点。
C2 noun /ˈɑːrtləsnəs/

artlessness

简朴, 自然
Meaning
The quality of being natural and simple without deceit or pretension.
Example
Her artlessness made her beloved by all.
她的artlessness使她受到所有人的喜爱。
C2 verb /ɪnˈtwaɪn/

entwine

缠绕
Meaning
to twist or wind together; to become closely connected or involved
Example
The vines entwine around the old fence.
藤蔓绕过老围栏。
C2 verb /ˈwɛltər/

welter

在混乱中翻滚
Meaning
to roll or toss about in a confused or disorderly way; to be in turmoil
Example
The city weltered in chaos after the sudden blackout.
城市在突然的停电后陷入混乱。
C2 adjective /daɪˈdæktɪk/

didactic

教学的
Meaning
Intended to teach, often with a moral lesson.
Example
The novel is not just entertaining but also didactic in nature.
这本小说不仅仅是娱乐性，还有教学性质。
C2 adjective /ˈdɛdˌpæn/

deadpan

面无表情
Meaning
Deliberately impassive or expressionless in manner.
Example
She delivered the joke in a completely deadpan voice.
她以完全面无表情的声音讲了笑话。
C2 noun /ˌtrænsfəˈriː/

transferee

受让人
Meaning
A person to whom a right, property, or responsibility is transferred.
Example
The transferee must sign the contract before taking ownership.
受让人必须在获得所有权之前签署合同。
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 /ˈfɒpəri/

foppery

浮夸
Meaning
Foolish or excessive concern with one's appearance or manners; pretentious behavior.
Example
His obsession with fashion was dismissed as mere foppery.
他对时尚的痴迷被当作浮夸。
C2 noun /ˈpɑːrvənuː/

parvenu

新富人
Meaning
A person who has recently gained wealth or influence but is not yet accepted socially.
Example
He was seen as a parvenu who lacked refinement despite his riches.
他被视为一个新富阶层，尽管他拥有财富，但却缺乏 refinement。
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。
C2 noun /ˈkoʊ.tə.ri/

coterie

一个小型的、排外的团体
Meaning
a small, exclusive group of people with shared interests
Example
He belonged to a coterie of artists who met every Friday.
他属于一个每周五见面的艺术家团体。
C2 adjective /ˈwɪt.ləs/

Witless

愚蠢的; 无知的; 没有智慧的
Meaning
lacking intelligence or wisdom; foolish
Example
His witless remarks during the meeting embarrassed everyone present.
他在会议中的愚蠢言论让所有在场的人都感到尴尬。
C2 verb /dɪˈsɪmjʊˌleɪt/

dissimulate

伪装
Meaning
To disguise or conceal one's true feelings or intentions.
Example
He tried to dissimulate his fear with a smile.
他试图用微笑掩饰他的恐惧。
C2 noun /ˈpɛdəˌɡɒɡ/

pedagogue

教师
Meaning
a teacher, especially a strict or formal one
Example
The old pedagogue insisted on discipline in the classroom.
那位老教育学家坚持在课堂上纪律。
C2 adjective ɪnˈdɒm.ɪ.tə.bəl

indomitable

不可征服
Meaning
Impossible to subdue or defeat.
Example
Her indomitable spirit helped her overcome adversity.
她那不可征服的精神帮助她克服了逆境。
C2 noun /ˈmɪlɪt/

millet

小米
Meaning
a small-seeded grass cultivated as a cereal crop
Example
Millet is often used as food in rural areas.
小米常常作为食物在农村地区使用。
C2 noun /ˈkɒn.kɔːd/

concord

协议或和谐
Meaning
Agreement or harmony between people or groups.
Example
The leaders worked towards international concord.
领导人们为国际和谐而努力。
C2 adjective /ˌɪntərˈniːsaɪn/

internecine

内部冲突
Meaning
Relating to conflict within a group, often causing mutual destruction.
Example
The internecine conflict weakened the organization from within.
内部冲突削弱了组织内部的力量
C2 noun /ˈɛnsaɪn/

ensign

旗帜
Meaning
A flag or standard, especially a military or naval one indicating nationality; also a junior officer in the navy or coast guard.
Example
The ship raised its national ensign before leaving the harbor.
这艘船在离开港口之前升起了它的国旗。
C2 adjective /ˌɛkjʊˈmɛnɪkəl/

ecumenical

生态化宗教团结
Meaning
Promoting unity among different Christian churches or religions.
Example
The leaders gathered for an ecumenical conference to encourage dialogue.
领导们为促进对话召开了一个生态化会议。
C2 adjective /kənˈvɜːrsənt/

conversant

熟悉，精通
Meaning
familiar with or knowledgeable about something
Example
She is conversant with the latest developments in technology.
她熟悉最新的技术发展。
C2 verb /blæsˈfiːm/

blaspheme

亵渎
Meaning
to speak irreverently about God or sacred things
Example
He was accused of blaspheming during the heated argument.
他在激烈的争论中被指控亵渎。
C2 noun /ˌsɪŋ.krəˈnɪs.ɪ.ti/

synchronicity

同步性
Meaning
The meaningful coincidence of two or more events that are not planned.
Example
The synchronicity of their thoughts amazed everyone.
他们思想的同步性让所有人都感到惊讶。
C2 noun /draɪd roʊz ˈpɛtəlz/

Dried Rose Petals

干玫瑰花瓣
Meaning
dehydrated petals from roses used for culinary and aromatic purposes
Example
The dessert was garnished with dried rose petals.
这道甜点用干玫瑰花瓣装饰。
C2 noun /ˌɪrɪˈdɛsəns/

iridescence

虹彩光泽
Meaning
a play of lustrous, changing colors like those of a rainbow
Example
The butterfly's wings shimmered with iridescence.
蝴蝶的翅膀闪耀着虹彩光泽。
C2 noun /ˈrɪp.lɪt/

ripplet

微小波纹
Meaning
a small or tiny ripple
Example
Tiny ripplets appeared on the lake as the fish moved.
当鱼移动时，湖面上出现了微小波纹。
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 noun /ˌlɛksɪˈkɒɡrəfər/

lexicographer

词典编纂者
Meaning
A person who compiles, writes, or edits dictionaries.
Example
The lexicographer spent years compiling the dictionary.
词典编纂者花了几年时间编写词典。
C2 noun /səˈlɛrɪti/

celerity

敏捷
Meaning
swiftness of movement; speed
Example
The soldier moved with great celerity to deliver the message.
士兵以极大的敏捷移动，以传递消息。
C2 adjective /kənˈtraɪt/

contrite

懊悔的
Meaning
feeling or showing remorse or guilt
Example
She was contrite after realizing her mistake.
她在意识到自己的错误后感到懊悔。
C2 noun ˌbaɪ.oʊ.əˈveɪ.lə.bɪl.ə.ti

bioavailability

身体吸收能力
Meaning
The degree to which a substance can be absorbed and used by the body.
Example
Turmeric's bioavailability increases when consumed with black pepper.
姜黄的生物可利用性在与黑胡椒一起食用时增加。
C2 noun /ˈaɪ.kɒn/

ikon

宗教图像或符号
Meaning
A religious image or symbol, especially in the Eastern Orthodox Church.
Example
The church displayed a beautifully painted ikon of the Virgin Mary.
教堂展示了美丽的圣母玛利亚圣像。
C2 noun /ˈpɑːrləns/

parlance

行话
Meaning
a particular way of speaking or using words, common to a group
Example
In legal parlance, the term has a different meaning.
在法律行话中，这个术语有不同的含义。
C2 verb /ˈsʌblɪmeɪt/

sublimate

转化为更高的活动
Meaning
to redirect strong emotions or desires into socially acceptable activities or channels
Example
She sublimated her anger into painting beautiful landscapes.
她将愤怒转化为美丽的风景画。
C2 noun /ˌmɪsˈnoʊmər/

misnomer

错误的名字
Meaning
A wrong or inaccurate name or designation.
Example
Calling the tiny dog a 'giant' is a misnomer.
称呼这只小狗为“巨人”是一个错误的名字。
C2 noun /ˌpliːnɪpəˈtɛnʃəri/

plenipotentiary

全权代表
Meaning
a person invested with full power to act on behalf of another, especially in diplomacy
Example
The ambassador was a plenipotentiary sent to negotiate the treaty.
大使是被派往谈判条约的全权代表。
C2 noun /ˈrɛlɪkwɛri/

reliquary

遗物箱
Meaning
a container for holy relics
Example
The ancient reliquary was decorated with gold and precious stones.
古老的遗物箱装饰着金子和宝石。
C2 verb /miːt/

mete

分配
Meaning
To dispense or allot justice, punishment, or harsh treatment.
Example
The judge will mete out punishment according to the crime.
法官将根据罪行分配惩罚。
C2 noun /nuːt/

Newt

蝾螈
Meaning
a small amphibian with a long tail that lives both in water and on land
Example
The newt swam gracefully in the pond.
蝾螈优雅地在池塘里游泳。
C2 noun /dʒuːt/

jute

黄麻
Meaning
a long, soft, shiny plant fiber used to make rope, bags, sacks, and coarse cloth
Example
Jute is widely used to make eco-friendly bags and ropes.
黄麻常用于制作环保袋。
C2 adjective /ˈfʌsti/

fusty

陈腐的，霉臭的
Meaning
smelling stale, damp, or stuffy; old-fashioned
Example
The room smelled fusty after being closed for months.
房间在关了几个月后有了陈腐的味道。
C2 noun /əˈnjuː.ɪ.ti/

annuity

年金
Meaning
a fixed sum of money paid to someone each year, typically for the rest of their life
Example
She receives an annuity from her late husband's insurance policy.
她从她已故丈夫的保险政策中获得年金。
C2 noun /ˈæmɪti/

amity

友谊
Meaning
A friendly relationship between people or countries.
Example
The treaty helped maintain amity between the neighboring nations.
该条约帮助维护邻国之间的友好关系。
C2 noun /ˈʃɑːdənfrɔɪdə/

schadenfreude

从他人的不幸中获得的快乐
Meaning
pleasure derived from another person's misfortune
Example
He felt a sense of schadenfreude when his rival failed.
当他的对手失败时，他感到一阵沙登弗洛伊德。
C2 adjective /kəˈnjuːbiəl/

connubial

婚姻的
Meaning
Relating to marriage or the relationship of a married couple.
Example
They celebrated their connubial bliss with a honeymoon trip.
他们通过蜜月旅行庆祝他们的婚姻幸福。
C2 adjective /ˌsɒfəˈmɒrɪk/

sophomoric

不成熟
Meaning
showing immaturity and overconfidence, like a sophomore
Example
His sophomoric behavior embarrassed his friends.
他的不成熟行为让他的朋友们感到尴尬。
C2 noun /ˈhænd ˌrɪŋɪŋ/

hand-wringing

过度担忧
Meaning
excessive worry or concern expressed in a visible or dramatic way.
Example
There was much hand-wringing over the political crisis.
关于政治危机有很多戏剧性的担忧。
C2 noun /ˈpɪkəloʊ/

piccolo

小长笛
Meaning
a small flute, higher in pitch than the regular flute
Example
She played a lively tune on the piccolo during the concert.
她在音乐会期间吹奏了生动的皮科洛旋律。
C2 noun /ˈmɪlk pɒt/

Milk-pot

牛奶壶
Meaning
a container specifically used for storing or serving milk
Example
She poured fresh milk from the milk-pot into her glass.
她将新鲜的牛奶从牛奶壶里倒入玻璃杯中。
C2 verb /ˈɔːreɪt/

orate

演讲
Meaning
To speak in a formal, often pompous manner
Example
He began to orate at the ceremony.
他在仪式上开始演讲。
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/adjective /ˈsaɪklɔɪd/

cycloid

摆线
Meaning
a curve traced by a point on the rim of a circle as it rolls along a straight line
Example
The cycloid is often studied in mathematics and physics.
摆线常在数学和物理学中研究。
C2 noun /ˌɪn.strəˈmɛn.təl.ɪst/

instrumentalist

乐器演奏者
Meaning
A person who plays a musical instrument.
Example
The instrumentalist played a beautiful solo on the violin.
乐器演奏者在小提琴上演奏了一首美丽的独奏曲。
C2 adjective /ˌmɛtəˈfɪzɪkəl/

metaphysical

形而上学的
Meaning
Relating to the branch of philosophy that deals with the fundamental nature of reality and existence.
Example
He spent years studying metaphysical questions about life and being.
他花了多年时间研究关于生活和存在的形而上学问题。
C2 noun /ɪˈlɛk.trə.taɪp/

electrotype

电铸版
Meaning
A duplicate printing plate made by electroplating a mold of the original.
Example
The printer used an electrotype to produce multiple copies of the page.
打印机使用了电铸版来制作页面的多个副本。
C2 adjective /ˈtrʌk.jʊ.lənt/

truculent

好斗的
Meaning
Eager or quick to argue, fight, or show aggression.
Example
She became truculent when her ideas were challenged.
当她的想法被挑战时，她变得好斗。
C2 noun /ˈbrɒŋkəs/

bronchus

支气管
Meaning
either of the two main branches of the trachea that lead directly into the lungs
Example
The left bronchus carries air into the left lung.
左支气管将空气输送到左肺。
C2 noun /ˈslæt.ən/

slattern

邋遢的女人
Meaning
a woman who is untidy or slovenly in appearance or habits
Example
The house looked as if a slattern lived there.
这所房子看起来像是一个邋遢的女人住在那里。
C2 noun/adjective /ˈlæpɪˌdɛri/

lapidary

宝石雕刻师
Meaning
As noun: a person who cuts, polishes, or engraves precious stones; As adjective: relating to such work.
Example
The museum displayed lapidary tools used in ancient times.
博物馆展示了古代使用的宝石雕刻工具。
C2 verb /kənˈvɑːlv/

convolve

一起缠绕或扭曲;缠绕或交织
Meaning
to roll or twist together; to coil or entwine
Example
The vines convolve around the tree trunk.
藤蔓缠绕在树干周围。
C2 verb /ʌnˈfrɒk/

unfrock

剥夺神职
Meaning
To remove a priest from his position or deprive someone of a rank.
Example
The corrupt priest was unfrocked after the investigation.
腐败的牧师在调查后被解除职务。
C2 verb /ˌmɪskənˈstruː/

misconstrue

误解
Meaning
To interpret something wrongly or misunderstand the meaning.
Example
She misconstrued his silence as anger.
她误解了他的沉默为愤怒。
C2 noun /dreɪk/

Drake

雄鸭
Meaning
a male duck; a type of waterfowl
Example
The drake led his family of ducks across the pond.
那只雄鸭带领它的鸭家族穿过了池塘。
C2 adjective /krʌˈsteɪʃəs/

crustaceous

有硬壳的
Meaning
relating to or having a hard shell like a crustacean
Example
The scientist studied the crustaceous fossils.
科学家研究了有硬壳的化石。
C2 adjective /ˈfluːtɪd/

fluted

有沟槽的
Meaning
having grooves or ridges, often for decoration
Example
The vase had a beautiful fluted design around the rim.
花瓶的边缘有一个美丽的有沟槽的设计。
C2 adverb /ˌeɪˈmɔːrəli/

amorally

非道德地
Meaning
In a way that shows no concern about whether behavior is morally right or wrong.
Example
He acted amorally, ignoring the consequences of his actions.
他以非道德的方式行事，忽视了他的行为后果。