sacrificial
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C1 adjective /ˌsækrɪˈfɪʃəl/

sacrificial

祭献的
Meaning
Relating to or involving sacrifice.
Example
The lamb was used as a sacrificial offering in the ritual.
这只羊在仪式中被用作祭献的礼物。
C1 adjective /ʌnˈwɪtɪŋ/

unwitting

无意的
Meaning
Not aware of what is happening; done without realizing.
Example
She became an unwitting participant in the scam.
她成了这场骗局中的一个无意的参与者。
C1 noun /ˌɔːkʃəˈnɪər/

auctioneer

拍卖师
Meaning
a person who conducts auctions by calling out bids and selling items to the highest bidder
Example
The auctioneer quickly raised the price as bidders competed for the painting.
拍卖师在竞价过程中迅速提高了价格。
C1 noun /ˈdaʊn.pɔːr/

Downpour

大雨; 突如其来的暴雨
Meaning
a heavy fall of rain; a sudden heavy rainfall
Example
The sudden downpour caught everyone off guard and soaked the outdoor event.
突如其来的暴雨让所有人措手不及，淋湿了户外的活动。
C1 verb /ˈdʒɜːrmɪneɪt/

germinate

幸福
Meaning
To begin to grow or develop, especially referring to a seed.
Example
The seeds germinate quickly in moist soil.
她无法掩饰自己收到奖项时的幸福。
A2 noun /ˈsæd.nəs/

Sadness

悲伤，痛苦，忧郁
Meaning
feeling of sorrow, unhappiness, or grief
Example
Her sadness was evident after hearing the bad news.
她听到坏消息后，她的悲伤显而易见。
C2 verb /ˈblækˌbɔːl/

blackball

排除
Meaning
to exclude someone socially or vote against their membership in a group or club
Example
He was blackballed from the club after the controversy.
他因争议被俱乐部除名。
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。
B2 adjective /əˈlɑːrmɪŋ/

alarming

令人担忧
Meaning
Worrying or disturbing; causing concern or fear.
Example
The unemployment rate among youth is alarming.
年轻人中的失业率令人担忧。
C2 noun /ˌbræɡəˈdoʊʃioʊ/

braggadocio

吹嘘行为
Meaning
boastful or arrogant behavior; empty boasting
Example
His endless braggadocio annoyed everyone at the party.
他无休止的吹嘘行为让派对上的每个人都感到厌烦。
B2 verb /ˌoʊvərˈduː/

overdo

做得过火
Meaning
to do something too much; to exaggerate or carry to excess
Example
Don't overdo the exercise on your first day at the gym.
第一天去健身房时不要运动过度。
A2 verb /bæt/

bat

用球棒打
Meaning
to hit with a bat; to flutter eyelids
Example
She bats her eyelashes flirtatiously.
她调皮地眨着眼睛。
C2 noun /dəˈkɔɪt/

Dacoit

强盗
Meaning
a member of an armed gang of robbers; a bandit, especially in India and Myanmar
Example
The village was terrorized by a gang of dacoits who robbed travelers.
这个村庄被一群强盗所恐吓，他们抢劫了旅行者。
C2 noun /ɡreɪˈdeɪʃən/

gradation

渐变
Meaning
A gradual change from one stage, tone, or degree to another.
Example
The artist used subtle gradation of colors in her painting.
艺术家在她的画作中使用了细腻的渐变色彩。
C2 noun /skæd/

scad

斯卡德鱼
Meaning
A type of fish of the jack family; also informally means a large number or quantity.
Example
The fisherman caught a scad in the net.
渔夫在网中抓住了一条斯卡德。
C2 noun /ˈkrɛməˌtɔːri/

crematory

火葬场
Meaning
a place where dead bodies are cremated
Example
The crematory was located near the cemetery.
火葬场位于墓地附近。
A1 verb /baɪ/

buy

买
Meaning
to get something by paying money for it; to purchase
Example
I want to buy a new car this year.
我今年想买一辆新车。
C1 noun /drɑːft/ (UK), /dræft/ (US)

draught

Meaning
a current of cool air in a room or another confined space; also a portion of liquid, especially beer, served from a barrel or cask
Example
She closed the window to keep out the cold draught.
B2 adjective /ˌɪntərˈmiːdiət/

intermediate

中级
Meaning
Coming between two things in time, place, or order; in the middle level or stage.
Example
She is taking an intermediate-level French course.
她正在上一个中级法语课程。
B1 noun sɪˈlek.ʃən

selection

选择
Meaning
The action or fact of carefully choosing someone or something as being the best or most suitable.
Example
The selection process is based on merit.
选择过程基于优点。
C2 noun /miːd/

mead

蜂蜜酒
Meaning
An alcoholic drink made from fermented honey and water.
Example
The Vikings were known to drink large amounts of mead during feasts.
维京人以在宴会上喝大量的蜂蜜酒而闻名。
C2 noun /ˌɪnəməˈrɑːtə/

inamorata

Meaning
A woman with whom someone is in love; a female lover.
Example
He wrote a poem dedicated to his inamorata.
C2 noun /ˌkɒnsæŋˈɡwɪnɪti/

consanguinity

血缘关系
Meaning
The fact of being descended from the same ancestor; blood relationship.
Example
The degree of consanguinity was important in inheritance laws.
继承法中，血缘关系的程度至关重要。
C1 noun /dɪˈmiːnər/

demeanor

行为
Meaning
a person's outward behavior or appearance
Example
Her calm demeanor impressed everyone at the meeting.
她的冷静行为给会议上的每个人留下了深刻印象。
C1 noun /ˈfɔːrwɜːrd/

foreword

前言
Meaning
a short introduction at the beginning of a book, typically written by someone other than the author
Example
The foreword of the book was written by a famous historian.
这本书的前言是由一位著名的历史学家写的。
C1 adjective /ˈfiːlaɪn/

feline

猫的特征
Meaning
relating to or characteristic of cats
Example
Her movements were graceful and almost feline in their elegance.
她的动作优雅，几乎像猫一样。
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。
B2 noun /ˈsɛm.iˌsɜːr.kəl/

semicircle

半圆
Meaning
Half of a circle or something shaped like half of a circle.
Example
The students sat in a semicircle around the teacher.
学生们围绕老师坐成半圆形。
C1 verb /ɪnˈvælɪdeɪt/

invalidate

使无效
Meaning
To make something not valid or legally acceptable.
Example
The new evidence may invalidate the previous ruling.
新证据可能使之前的裁决无效。
C1 verb /ˈpoʊ.lə.raɪz/

polarize

极化
Meaning
to divide or cause to divide into two sharply contrasting groups or sets of opinions or beliefs
Example
The controversial decision polarized public opinion.
有争议的决定使公众意见分成了两个对立的阵营。
B2 noun /oʊˈbiː.di.əns/

Obedience

服从
Meaning
compliance with an order, request, or law; submission to authority
Example
Children should show obedience to their parents.
孩子们应该对父母表现出服从。
C2 verb /ˌweɪˈleɪ/

waylay

突然拦住 / 攻击
Meaning
to stop or interrupt someone unexpectedly, often to attack or detain them
Example
He was waylaid by reporters as he left the courthouse.
当他离开法院时，被记者拦住了。
C1 verb /ˈdʒʌɡəl/

juggle

杂耍
Meaning
To continuously toss and catch objects in the air; to manage many tasks at the same time.
Example
He tried to juggle work, studies, and family responsibilities.
他试图同时处理工作、学习和家庭责任。
B2 noun /ˈɡæl.ək.si/

Galaxy

银河系
Meaning
a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
Example
The Milky Way is the galaxy that contains our solar system and Earth.
银河系是包含我们太阳系和地球的星系。
B2 noun /ˈtoʊ.kən/

token

象征 / 代币
Meaning
A symbol or object that represents something, often given as a sign of appreciation or as a substitute for money.
Example
She gave him a small gift as a token of gratitude.
她给了他一份小礼物，作为感谢的象征。
B2 adjective /proʊn/

Prone

倾向于
Meaning
having a tendency to; inclined; lying face down
Example
He is prone to making mistakes when he's tired.
他容易犯错，当他累的时候。
B2 verb /mɜːrdʒ/

merge

合并
Meaning
to combine or join together; to blend into one
Example
The two companies decided to merge to increase their market share.
两家公司决定合并以增加他们的市场份额。
C2 noun /ˈmɪn.i.ən/

minion

爪牙
Meaning
A follower or underling of a powerful person, especially a servile one.
Example
The dictator was surrounded by loyal minions who carried out his orders.
独裁者被忠诚的爪牙包围，他们执行他的命令。
C2 adjective /ˈdɔːnt.ləs/

dauntless

无畏的，勇敢的，坚定的
Meaning
Showing fearlessness and determination; brave and resolute.
Example
The dauntless soldier fought against all odds.
无畏的士兵与所有困境作斗争。
B2 noun /ˈfriː.kwən.si/

Frequency

频率
Meaning
the rate at which something occurs or is repeated over a particular period of time
Example
The frequency of earthquakes in this region has increased dramatically over the past decade.
这个地区的地震频率在过去十年中急剧增加。
B1 noun ˌkɒnsənˈtreɪʃən

concentration

集中
Meaning
The action or power of focusing one's attention or mental effort on a particular object or activity
Example
Concentration is key to mastering any skill.
集中是掌握任何技能的关键。
B1 adjective /ˈplʊrəl/

plural

复数
Meaning
denoting more than one person or thing
Example
The word 'cats' is the plural of 'cat'.
'猫'的复数是'猫们'。
C1 noun /ˈpæntəmaɪm/

pantomime

哑剧
Meaning
A type of theatrical performance using gestures and movements without spoken words; in Britain, a musical comedy play for families performed at Christmas.
Example
The children enjoyed the Christmas pantomime at the local theater.
孩子们在当地剧院观看了圣诞哑剧。
B2 noun, verb /steɪk/

stake

股份, 风险
Meaning
A share or interest in a business or venture; to risk or support something of value.
Example
He has a major stake in the new company.
他在新公司拥有重大股份。
A2 noun /ˌsɪtʃuˈeɪʃən/

Situation

情况; 事态
Meaning
a set of circumstances in which one finds oneself; a state of affairs
Example
We need to assess the current situation before making any decisions.
我们需要在做出任何决定之前评估当前情况。
B1 noun /raɪs ˈkʊkər/

Rice cooker

电饭煲
Meaning
an electric appliance designed to cook rice automatically
Example
The rice cooker automatically switches off when the rice is perfectly cooked.
当米饭煮得刚好时，电饭煲会自动关闭。
C1 noun /ˌdɜːrməˈtɑːlədʒɪst/

dermatologist

皮肤科医生
Meaning
A doctor who specializes in the treatment of skin diseases.
Example
She consulted a dermatologist for her skin allergy.
她因皮肤过敏去咨询了皮肤科医生。
A1 noun /pəˈteɪ.toʊ/

Potato

土豆
Meaning
a round white vegetable with a brown or red skin that grows underground
Example
She boiled potatoes for dinner.
她煮了土豆做晚餐。
C1 noun /əˈbreɪʒən/

abrasion

由于摩擦而导致的皮肤或表面的擦伤或磨损
Meaning
a scrape or wearing away of the skin or surface due to friction
Example
He suffered a minor abrasion on his knee after falling.
他在摔倒后膝盖上受了一个轻微的擦伤。
B2 noun plɒt

plot

情节
Meaning
The main story of a piece of writing, or the series of events that happen in it.
Example
The plot of A Tale of Two Cities is intense and gripping.
'双城记'的情节紧张且引人入胜。
B2 adjective /ˌɪnkənˈviːniənt/

Inconvenient

不便的; 难堪的; 麻烦的
Meaning
causing trouble, difficulties, or discomfort; awkward; troublesome
Example
The broken elevator made it inconvenient to reach the top floor.
坏掉的电梯使得到达顶楼变得不方便。
C1 noun /ˈskaɪ.lɑːrk/

Sky-Lark

云雀
Meaning
a small brown bird known for singing while flying high in the sky
Example
The skylark sang beautifully as it soared above the meadow.
当云雀飞翔在草地上方时，它美丽地歌唱。
A1 noun/adjective/adverb /ˌaʊtˈsaɪd/

outside

外面
Meaning
the external part or surface of something; beyond the boundary
Example
Children were playing outside in the yard.
孩子们在院子外面玩。
C2 verb /əˈvaʊ/

avow

公开宣誓
Meaning
to openly declare or admit something, often publicly and firmly
Example
He avowed his loyalty to the cause without hesitation.
他毫不犹豫地公开宣誓忠诚于事业。
A2 noun /ˈkɑr.pɪt/

Carpet

地毯
Meaning
a floor covering made from thick woven fabric
Example
The Persian carpet in the living room was a family heirloom.
客厅里的波斯地毯是家族的传家宝。
C1 adjective /əˈtjuːnd/

attuned

敏感的 / 调整好的
Meaning
Being receptive or sensitive to something; well adjusted or in harmony.
Example
She is attuned to the needs of her students.
她对学生的需求很敏感。
C1 verb /ˈpɒstʃʊleɪt/

postulate

假设
Meaning
to suggest or assume that something is true as the basis for reasoning or discussion
Example
Scientists postulate that life exists on other planets.
科学家假设在其他星球上存在生命。
B2 noun ˈlɛɡ.ə.si

legacy

遗产
Meaning
An amount of money or property left to someone in a will; something left or handed down by a predecessor.
Example
His contributions left a lasting legacy in the industry.
他的贡献在行业中留下了持久的遗产。
C1 adjective /dɪsˈrɛpjətəbl̩/

disreputable

声名狼藉
Meaning
having a bad reputation; not considered respectable or trustworthy
Example
The journalist avoided staying in the disreputable part of town.
记者避免住在城市的声名狼藉地区。
B2 noun /ˈwɒtʃ.mən/

Watchman

看守人
Meaning
a person employed to guard or watch over a building or area, especially at night
Example
The watchman patrols the factory every hour to ensure security.
看守人每小时巡逻工厂，确保安全。
C1 noun /ˈduːmz.deɪ/

Doomsday

世界末日; 最后的审判日
Meaning
the last day of the world's existence; a time of catastrophic destruction
Example
The preacher spoke about doomsday and the importance of preparing spiritually.
传教士谈到了世界末日和灵性准备的重要性。
B2 noun /ˈaɪkɒn/

icon

图标, 象征
Meaning
A person or thing regarded as a symbol of something, or a graphic symbol on a screen.
Example
The singer became a cultural icon.
这位歌手成为了文化图标。
C2 adjective /ˈsɪmiən/

simian

类人猿的
Meaning
Relating to, resembling, or affecting apes or monkeys.
Example
The scientist studied the simian behavior of the chimpanzees.
科学家研究了黑猩猩的类人猿行为。
A1 adverb /wʌns/

Once

一次; 过去的某个时候
Meaning
one time only; at some time in the past; formerly
Example
I have been to Paris once in my life.
我一生中只去过一次巴黎。
A2 adjective; noun; gerund /ˈwɪnɪŋ/

winning

获胜的
Meaning
achieving victory or success; attractive or pleasing in a way that brings success
Example
She has a winning attitude that inspires the whole team.
她有一种获胜的态度，激励着整个团队。
C1 adjective /ˌæprɪˈhɛnsɪv/

apprehensive

担忧的
Meaning
feeling anxious or fearful that something bad will happen
Example
He was apprehensive about starting a new job in a foreign country.
他对在一个陌生的国家开始一份新工作感到担忧。
B1 noun /ɪnˌvɛs.tɪˈɡeɪ.ʃən/

investigation

调查
Meaning
the process of inquiring into or examining something carefully to find the truth
Example
The investigation revealed new evidence about the fraud.
调查揭示了有关欺诈的新证据。
C1 noun /ˌdiːpɔːrˈteɪʃən/

deportation

Meaning
The act of expelling a foreigner from a country.
Example
The deportation of hundreds of workers sparked international criticism.
B2 noun ˌkɒn.stɪˈtjuː.ʃən

constitution

宪法
Meaning
A body of fundamental principles or established precedents according to which a state is governed.
Example
Constitutional reforms ensure equity.
宪法改革确保公平。
B2 noun /kənˌfɪɡəˈreɪʃən/

configuration

配置
Meaning
an arrangement of parts or elements in a particular form or structure
Example
The configuration of the system needs to be adjusted for better performance.
系统配置需要调整以提高性能。
C1 adjective /ɪnˈtjuː.ɪ.tɪv/

intuitive

直觉的
Meaning
Based on instinctive understanding rather than reasoning.
Example
The software has an intuitive design that makes it easy to use.
该软件具有直观的设计，使其易于使用。
C1 adjective /ʌnˈʃeɪkən/

Unshaken

坚定不移; 坚固
Meaning
not disturbed or affected; firm and steady; unwavering
Example
Her faith remained unshaken despite all the challenges.
尽管面临所有挑战，她的信念依然坚定不移。
C1 noun /hɑːrp/

Harp

竖琴
Meaning
a large triangular musical instrument with strings that are plucked
Example
The angel played a beautiful melody on the harp.
天使在竖琴上弹奏了一首美丽的旋律。
C1 noun /ɪnˈdɪrmənt/

endearment

亲切的词语
Meaning
A word or phrase expressing affection or love.
Example
She whispered a gentle endearment to her child.
她低声对孩子说了一个亲切的词语。
C2 noun /kəˈkɒfəni/

cacophony

刺耳的噪音
Meaning
A harsh, discordant mixture of sounds.
Example
The cacophony of horns made it impossible to concentrate.
喇叭的刺耳声音使人无法集中注意力。
C2 noun /drɒs/

dross

废料
Meaning
worthless or unwanted material; rubbish or impurities
Example
Most of his early writings were considered dross.
他的大部分早期作品被视为废料。
C1 noun /ˈmɒŋ.ɡuːs/

Mongoose

獴
Meaning
a small carnivorous mammal known for its ability to kill venomous snakes
Example
The mongoose quickly attacked the cobra to protect its young.
獴迅速攻击了眼镜蛇，以保护它的幼崽。
B2 verb /əˈveɪl/

avail

利用
Meaning
to make use of something; to be of use or benefit
Example
You should avail yourself of this opportunity.
你应该利用这个机会。
B2 noun /kənˈvɪk.ʃən/

conviction

信念
Meaning
A firmly held belief or opinion.
Example
She spoke with conviction, making everyone believe her.
她充满信念地说话，使每个人都相信她。
C1 noun /ˈmɛm.wɑːr/

memoir

回忆录
Meaning
A historical account or autobiography written from personal experience.
Example
The author’s memoir details her journey through hardship and success.
作者的回忆录详细描述了她通过困难和成功的旅程。
C2 adjective /ˈsmɑːrmi/

smarmy

奉承 / 虚伪的礼貌
Meaning
Excessively flattering or ingratiating, often insincerely.
Example
The salesman gave a smarmy pitch that felt fake.
销售员做了一个让人觉得虚假的奉承推销。
C1 noun dɪˈfleɪʃən

deflation

通货紧缩
Meaning
Reduction of the general level of prices in an economy.
Example
Deflation often leads to decreased consumer spending.
通货紧缩往往导致消费者支出减少。
C1 noun /ˈkɒrənər/

coroner

法医
Meaning
an official who investigates sudden, violent, or suspicious deaths
Example
The coroner determined the cause of death was natural.
法医确定死亡原因是自然的。
B2 noun /ˈliːf.lət/

Leaflet

传单; 宣传单
Meaning
a printed sheet of paper containing information or advertising and usually distributed free
Example
She handed out leaflets about the environmental campaign.
她分发了有关环保运动的传单。
B2 noun /ˈsnoʊ.fɔːl/

Snowfall

降雪
Meaning
the process of snow falling from the sky; the amount of snow that falls
Example
The heavy snowfall blocked all the roads yesterday.
昨天下的大雪封锁了所有的道路。
C2 noun /bɛl/

belle

美丽的女人
Meaning
A beautiful woman, especially the most attractive woman at a gathering.
Example
She was the belle of the ball that evening.
她是那个晚上舞会的美丽女士。
B2 adjective /ˈfɔːlti/

faulty

有缺陷的
Meaning
Having defects or imperfections; not working properly
Example
The device stopped working because it was faulty.
设备停止工作，因为它有缺陷。
A2 noun /hɔːl/

Hall

大厅; 走廊
Meaning
a large room for meetings, concerts, or other events; a corridor in a building
Example
The graduation ceremony was held in the main hall of the university.
毕业典礼在大学的主大厅举行。
C1 noun /brɪm/

Brim

边缘; 边沿
Meaning
the projecting edge of a hat; the edge or lip of something
Example
The wide brim of his hat protected him from the scorching sun.
他帽子宽大的边缘保护他免受炽热阳光的照射。
A2 adjective /ˈnæʃənəl/

national

国家的
Meaning
relating to a nation, especially its culture, language, or government
Example
The national anthem was played at the ceremony.
国歌在仪式上播放。
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。
C1 noun /ˈæftərˌθɔːt/

afterthought

Meaning
Something added or considered later than originally planned.
Example
The gift seemed like an afterthought rather than a genuine gesture.
C1 noun /rɪˌsɛptɪˈvɪti/

receptivity

接受能力
Meaning
The ability or willingness to receive something, especially signals or stimuli.
Example
Her receptivity to new ideas helped improve the project.
她对新思想的接受能力帮助改善了项目。
C1 noun /ˈʌndərˌstʌdi/

understudy

替身演员
Meaning
An actor who learns another's role to act as a replacement if needed.
Example
The understudy performed when the lead actor fell ill.
当主角生病时，替身演员上场表演。
B2 noun, verb /treɪs/

trace

痕迹
Meaning
a mark, object, or sign that shows the existence or development of something
Example
She traced the path of the river on the map.
她在地图上描绘了河流的路径。
C2 noun /ˈmʌs.tərd liːf/

Mustard leaf

芥菜叶
Meaning
green leafy vegetable from the mustard plant; edible leaves used in cooking
Example
We cooked mustard leaf with fish in a traditional Bengali curry.
我们在传统的孟加拉咖喱中与鱼一起煮了芥菜叶。
A2 adjective /ʃɑːrp/

Sharp

锋利; 强烈; 突然和强烈; 快速理解
Meaning
having a cutting edge or point; sudden and intense; quick to understand
Example
The knife has a very sharp blade.
刀片非常锋利。
C1 noun /kliːk/

clique

小圈子
Meaning
a small, exclusive group of people
Example
The students formed a clique that excluded others.
学生们组成了一个排外的小圈子。
B2 verb /bɑːrk/

bark

吠叫
Meaning
to make a sharp sound like a dog; to speak angrily
Example
The dog barks at strangers.
狗对陌生人大叫。
B1 noun ˈkraɪsɪs

crisis

危机
Meaning
A time of intense difficulty, trouble, or danger.
Example
The financial crisis affected global markets.
金融危机影响了全球市场。
A2 verb /dɪˈzaɪn/

design

Meaning
to plan and create something with a particular purpose or look
Example
She will design the new company logo.
C2 adjective /ˈrɛkənˌdaɪt/ or /ˈrɛkəndaɪt/

recondite

鲜为人知或难以理解的
Meaning
Little known or difficult to understand.
Example
The professor’s lecture was full of recondite theories.
教授的讲座充满了深奥的理论。
C2 noun /ˌɪnvəˈluːʃən/

involution

内卷
Meaning
a complicated or intricate form or state; in biology, the shrinking of an organ after its function has finished
Example
The story was full of involution, making it hard to follow.
这个故事充满了内卷，使得跟随它变得很难。
B2 noun /dɪsˈmɪsl̩/

dismissal

解雇, 拒绝
Meaning
the act of removing someone from their job; the act of treating something as unimportant
Example
His unfair dismissal led to a lawsuit against the company.
他的不公正解雇导致了对公司的诉讼。
B2 verb /ˈɪnəveɪt/

innovate

创新
Meaning
To introduce new methods, ideas, or products.
Example
The company must innovate to stay ahead of its competitors.
公司必须创新，以保持领先于竞争对手。
A1 noun /ˈpeɪ.pər/

paper

纸, 文档, 研究论文
Meaning
A material manufactured in thin sheets from the pulp of wood or other fibrous substances, used for writing or printing on.
Example
The student submitted his research paper on artificial intelligence.
学生提交了他的人工智能研究论文。
C1 noun /rəˈviːn/

ravine

峡谷
Meaning
A deep, narrow valley with steep sides.
Example
The river carved a deep ravine through the mountains.
河流在山脉中切割出一条深深的峡谷。
C1 noun /ˈɛkstrəˌvɜːrt/

extrovert

外向者
Meaning
a person who is outgoing, sociable, and energized by being around other people
Example
As an extrovert, she enjoys meeting new people at social events.
作为一个外向者，她喜欢在社交活动中认识新朋友。
C2 verb /bɪˈleɪbə/

belabour

过分强调
Meaning
to explain something repeatedly or with excessive detail; to criticize or attack verbally at length
Example
The teacher did not belabour the point once the students understood it.
当学生已经理解后，老师没有过分强调这一点。
A2 noun /kɔːrn/

Corn

玉米
Meaning
a tall cereal plant that produces kernels on large ears; maize
Example
We grilled corn on the cob for dinner.
我们在晚餐时烤了玉米棒。
C2 adjective /ˌɛkstrəˌdʒuːˈdɪʃəl/

extrajudicial

非司法的
Meaning
done outside the authority of the legal system or judicial process
Example
The activists condemned the extrajudicial killings.
活动家谴责了非司法的谋杀。
C1 noun /ˌsɒl.jʊˈbɪləti/

solubility

溶解度
Meaning
The ability of a substance to dissolve in a solvent.
Example
The solubility of salt in water is high.
盐在水中的溶解度很高。
C1 verb /flɑp/

flop

失败
Meaning
to fall or move heavily and clumsily; to fail completely
Example
The new movie flopped at the box office.
新电影在票房上失败了。
B1 noun /ˈwiːltʃeər/

wheelchair

轮椅
Meaning
a chair with wheels, used by people who cannot walk easily or at all
Example
The hospital provided a wheelchair for the injured patient.
医院为受伤的病人提供了轮椅。
C1 noun /faɪˈnælɪti/

finality

最终性
Meaning
the quality of being final or irreversible; a sense of conclusiveness
Example
The judge's decision gave the case a sense of finality.
法官的决定赋予案件一种最终性的感觉。
C2 verb /ˌnɒnˈplʌst/

nonplussed

困惑
Meaning
Past tense of nonplus; surprised and unsure how to react.
Example
He stood nonplussed at the strange remark.
他对奇怪的评论感到困惑。
C1 adjective /sɛkˈtɛəriən/

sectarian

宗派的
Meaning
relating to or characterized by the differences between sects, often leading to conflict
Example
The region has been troubled by sectarian violence for decades.
该地区几十年来一直受到宗派暴力的困扰。
C1 noun əˈblɪv.i.ən

oblivion

遗忘, 灭绝, 消失
Meaning
The state of being unaware or unconscious of what is happening; complete forgetfulness.
Example
His name faded into oblivion over time.
随着时间的推移，他的名字渐渐消失在遗忘中。
C1 verb /ˈsaɪdˌtræk/

sidetrack

分心
Meaning
To distract from the main subject or activity.
Example
She was sidetracked by an unexpected phone call.
她被一个意外的电话打断了。
C1 noun /ˈdæɡ.ər/

Dagger

匕首
Meaning
a short knife with a pointed blade used as a weapon
Example
The ancient warrior carried a silver dagger.
古代战士携带着一把银色匕首。
B2 adjective /ʌnˌkənˈdɪʃ.ən.əl/

Unconditional

无条件的
Meaning
not subject to any conditions; complete and absolute
Example
She offered her unconditional support to her friend in need.
她在朋友需要时提供了无条件的支持。