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A1 noun /wɛst/

west

西
Meaning
the direction to the left of the north and to the right of the south, typically associated with the sunset
Example
The sun sets in the west.
太阳在西方落下。
B1 adjective ʌnˈplænd

unplanned

未计划的
Meaning
Not planned or arranged in advance; happening spontaneously without preparation.
Example
Unplanned urbanization contributes to environmental issues.
无计划的城市化会加剧环境问题。
C2 noun /ˈsuːθˌseɪər/

soothsayer

预言家
Meaning
a person who claims to predict the future
Example
The king consulted a soothsayer before going to war.
国王在出征前咨询了一个算命师。
C1 noun /ˈdʒuː.bɪ.liː/

Jubilee

周年纪念; 特别庆典
Meaning
a special anniversary celebration, especially the 25th, 50th, or 60th anniversary of an important event
Example
The school celebrated its golden jubilee with a grand ceremony.
学校以盛大的仪式庆祝了它的金色周年纪念。
A2 verb /səkˈsiːd/

succeed

成功
Meaning
to achieve the desired aim or result; to do well
Example
She worked hard to succeed in her career.
她努力工作，力图在事业中取得成功。
C1 adjective ˈflʌd proʊn

flood-prone

易受洪水影响
Meaning
Susceptible to flooding; likely to experience floods frequently.
Example
Bangladesh is a flood-prone deltaic nation.
孟加拉国是一个容易发生洪水的三角洲国家。
C1 noun (plural of fungus) /ˈfʌndʒaɪ/

fungi

真菌
Meaning
a group of spore-producing organisms such as mushrooms, molds, and yeasts
Example
Fungi play an important role in breaking down organic matter in nature.
真菌在自然界中在分解有机物质方面发挥着重要作用。
C2 adjective /tʃeɪst/

Chaste

贞洁; 纯洁
Meaning
pure and morally good; abstaining from sexual activity
Example
She lived a chaste and virtuous life.
她过着纯洁而美德的生活。
A2 verb,noun /pæk/

pack

Meaning
to put things into a container for storage or transport; a collection of items kept together
Example
She packed her clothes into a suitcase for the trip.
B1 noun /rɪˈliːf/

Relief

宽慰; 安慰; 援助
Meaning
a feeling of comfort after worry or distress; assistance given to those in need
Example
She felt great relief when the exam was over.
她在考试结束时感到极大的宽慰。
C2 verb /ɛksˈhjuːm/

exhume

掘出
Meaning
to dig out something buried, especially a body from the ground
Example
The archaeologists decided to exhume the ancient remains.
考古学家决定挖掘古老的遗骸。
B2 noun ˈɪnər strɛŋkθ

inner strength

内在力量
Meaning
Mental or spiritual power that helps a person cope with difficulties.
Example
Community service fosters inner strength in individuals.
社区服务促进了个人的内在力量。
C1 noun /liˈeɪzɒn/

liaison

联络人
Meaning
communication or cooperation between people or groups for a smooth working relationship
Example
She works as a liaison between the company and its clients.
她在公司与客户之间担任联络人。
B2 adverb /rɪˈpɔːtɪdli/

reportedly

据报道
Meaning
according to what is said or believed, although not confirmed
Example
The company has reportedly agreed to the new terms.
公司 reportedly 已同意新的条款。
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 /rɪˈfjuː.tə.bəl/

Refutable

可反驳的
Meaning
capable of being proven wrong or false; able to be disproved
Example
His theory was refutable because it could be tested experimentally.
他的理论是可以被反驳的，因为它可以通过实验测试。
A2 verb /kəˈlɛkt/

collect

收集
Meaning
to gather together; to accumulate items
Example
I collect stamps as a hobby.
我把收集邮票作为一种爱好。
C1 adjective, noun, verb /ˈtrɛbəl/

treble

三倍，尖高音
Meaning
triple; consisting of three parts; high-pitched sound in music
Example
The company's profits trebled in just two years.
公司的利润在两年内翻了三倍。
B2 adjective /ˌsɪm.pəˈθet.ɪk/

Sympathetic

有同情心的; 富有理解的; 敏感的;
Meaning
showing compassion or understanding for someone's feelings or situation
Example
She was very sympathetic when I told her about my problems.
当我告诉她我的问题时，她表现得非常有同情心。
B2 adjective /ˈhoʊl.səm/

Wholesome

有益健康的; 促进身体或道德福祉的
Meaning
conducive to or promoting moral or physical well-being; healthy
Example
Eating wholesome food is important for good health.
吃健康的食物对保持良好的健康很重要。
C2 verb /læmˈpuːn/

lampoon

讽刺
Meaning
to publicly criticize or ridicule someone or something with humor, irony, or sarcasm
Example
The cartoonist lampooned the politician for his contradictory statements.
漫画家因政治家的矛盾言论而讽刺他。
A1 noun, verb /bʊk/

book

Meaning
A set of written, printed, or blank pages fastened together; to arrange for someone to have a seat, room, or ticket in advance.
Example
I booked a table at the restaurant for dinner.
C2 noun /ˈvoʊkəbəl/

vocable

词汇
Meaning
a word, term, or sound that has meaning
Example
The dictionary contained thousands of vocables from different languages.
字典中包含来自不同语言的成千上万的词汇。
A2 verb /əˈtæk/

attack

攻击
Meaning
to use violence against someone; to criticize strongly
Example
The enemy forces attacked at dawn.
敌军在黎明时攻击。
B2 adjective /ˈmɪθɪkəl/

Mythical

神话的
Meaning
existing only in myths or legends; imaginary or fictitious
Example
Dragons are mythical creatures that appear in many cultures.
龙是神话中的生物，出现在许多文化中。
C1 verb /əˈluːd/

allude

暗示
Meaning
To refer to something indirectly or casually.
Example
The professor alluded to Shakespeare during the lecture.
教授在讲座中提到了莎士比亚。
B1 noun /ˈneɪbərˌhʊd/

neighborhood

社区
Meaning
a district or area around or near a particular place
Example
I grew up in a quiet neighborhood.
我在一个安静的社区长大。
A2 noun /ˈkær.ət/

Carrot

胡萝卜
Meaning
a long pointed orange root vegetable that grows underground
Example
Carrots are rich in vitamin A.
胡萝卜富含维生素A。
C1 noun /ˈwɜːkmənʃɪp/

workmanship

工作质量
Meaning
The skill with which something is made or the quality of something made.
Example
The workmanship of the handmade furniture was impeccable.
手工制作的家具工艺无可挑剔。
C2 adjective fɔːˈtjuː.ɪ.təs

fortuitous

偶然的
Meaning
Happening by accident or chance rather than design; lucky or fortunate.
Example
Their meeting was purely fortuitous.
他们的相遇完全是偶然的。
C1 adjective /kənˈɡrɛʃənl/

congressional

国会的
Meaning
relating to a congress, especially the US Congress
Example
The bill received strong congressional support.
该法案获得了强烈的国会支持。
B2 adjective /əˈnɒn.ɪ.məs/

Anonymous

匿名的; 无名的
Meaning
having an unknown name or identity; nameless
Example
The author published the book under an anonymous pseudonym.
作者以匿名的笔名出版了这本书。
C1 adjective /hjuːˈmeɪn/

humane

人道的
Meaning
Showing compassion or benevolence.
Example
The doctor provided humane treatment to the injured animals.
医生对受伤的动物提供了人道治疗。
C1 noun /ˈflɔː.rə/

flora

在特定地区或栖息地中发现的植物生命
Meaning
The plant life found in a particular region or habitat.
Example
The Amazon rainforest is home to a vast flora diversity.
亚马逊雨林是丰富的植物群多样性的家园。
A1 noun ˈpɛrənts

Parents

父母
Meaning
One's father and mother.
Example
The family tree starts with the child's parents.
家谱从孩子的父母开始。
C1 noun /ˌlɪbəˈreɪʃən wɔːr/

liberation war

解放战争
Meaning
a war fought to gain freedom from foreign rule, occupation, or oppression; an armed struggle for national independence
Example
The liberation war reshaped the nation’s history and identity.
解放战争改变了国家的历史和认同。
C1 adjective /ˌæntiˈneɪtl/

antenatal

产前
Meaning
Relating to the medical care and treatment given to a pregnant woman before the birth of her child.
Example
She attended regular antenatal checkups throughout her pregnancy.
她在怀孕期间定期参加产前检查。
A1 noun /klɒk/

Clock

时钟
Meaning
an instrument used to indicate, keep, and co-ordinate time
Example
The clock on the wall shows three o'clock.
墙上的时钟显示三点。
B2 noun /prəˈvɪʒ.ən/

Provision

供给
Meaning
supplies of food and other necessary things; arrangement or preparation
Example
The government made provision for emergency supplies during the flood.
政府为洪水期间的紧急供应作出了安排。
B2 adjective /ɪˈreɡjələr/

irregular

不规则的
Meaning
not even or consistent in shape, pattern, time, or behavior; not following normal rules
Example
His attendance at work has been irregular this month.
他这个月上班出勤不规则。
C2 noun /skʌlˈdʌɡəri/

skulduggery

欺诈
Meaning
underhanded or dishonest behavior
Example
The politician was accused of financial skulduggery.
这位政治家因金融欺诈而受到指控。
C2 adjective /ˌʌnəˈʃʊəd/

unassured

不确定的
Meaning
Lacking confidence or certainty.
Example
She gave an unassured answer during the interview.
她在面试中给出了一个不确定的答案。
B1 noun /ˈθʌn.dər/

Thunder

雷声
Meaning
the loud rumbling sound that follows lightning; to make a loud deep sound
Example
We heard thunder rolling across the sky.
我们听到雷声滚过天空。
A2 verb /rɪˈmeɪn/

remain

留下
Meaning
to stay in the same place; to continue to exist
Example
Only a few guests remain at the party.
只有少数客人留在派对上。
C1 noun /ɪˌreɡjəˈlærɪti/

irregularity

不规则性
Meaning
lack of regularity or consistency; a deviation from what is normal, expected, or orderly
Example
The audit revealed several financial irregularities in the company’s records.
审计发现该公司的记录中存在多项财务不规则性。
C2 verb /swɪl/

swill

贪婪地喝
Meaning
to drink something greedily or in large amounts
Example
He swilled down the beer in seconds.
他几秒钟就把啤酒喝完了。
C1 adjective /ɪˈrɛfjʊtəbəl/

Irrefutable

不可反驳的
Meaning
impossible to deny or disprove; undeniable
Example
The evidence against him was irrefutable.
对他的证据是不可反驳的。
A2 phrasal verb /pɪk ʌp/

pick up

捡起; 接载; 学会
Meaning
to lift something; to collect or receive someone or something; to learn or acquire gradually; to improve or increase
Example
She picked up the book from the floor.
她从地板上捡起了那本书。
C1 noun /taɪˈreɪd/

tirade

长篇怒斥
Meaning
a long, angry, or critical speech
Example
The manager launched into a tirade about poor performance.
经理对糟糕的表现进行了长篇的愤怒演讲。
B2 noun /ˌtɜːrməˈnɑːlədʒi/

terminology

术语
Meaning
the set of technical or special words used in a particular subject
Example
Medical terminology can be difficult for new students to understand.
医学术语可能对新学生来说很难理解。
A1 noun /mæn/

man

男人
Meaning
an adult human male
Example
The man helped the child cross the street.
那个人帮助孩子过马路。
C1 noun /ˈmælɪs/

Malice

恶意; 仇恨; 敌意;
Meaning
The intention or desire to do evil; ill will
Example
There was no malice in his criticism, just honest feedback.
他的批评中没有恶意，只是诚实的反馈。
B1 noun /dɪˈfens/

Defence

防御; 保护
Meaning
the action of defending from or resisting attack; protection or support
Example
The country strengthened its defence system against potential threats.
该国加强了其防御系统，以应对潜在威胁。
C1 adjective /ˌɪnstənˈteɪniəs/

instantaneous

即时
Meaning
Happening immediately, without any delay.
Example
The change in temperature was almost instantaneous.
温度变化几乎是即时的。
C2 noun /ˈeɪ.viˌɛr.i/

aviary

鸟舍
Meaning
a large enclosure for keeping birds
Example
The zoo built a new aviary for exotic parrots.
动物园为外来鹦鹉建了一个新的鸟舍。
C2 noun /ˈænɪ siːd/

Ani seed

八角
Meaning
Small aromatic seeds used as a spice and for medicinal purposes, with a sweet licorice-like flavor
Example
Anise seeds are often used in traditional desserts and teas.
八角种子常用于传统的甜点和茶中。
C2 noun /dɪˈbɛntʃər/

debenture

债券
Meaning
a type of debt instrument not secured by physical assets or collateral
Example
The company raised capital by issuing debentures to investors.
公司通过向投资者发行债券筹集资金。
C1 verb /ɪnˈfleɪm/

inflame

激起
Meaning
to arouse strong feelings or provoke anger; to cause inflammation in the body
Example
The politician's remarks served to inflame public opinion.
政治家的言论激起了公众舆论的愤怒。
C2 noun /ˈmædʒɪstrəsi/

magistracy

司法办公室
Meaning
The office, authority, or district of a magistrate.
Example
He was proud to serve in the local magistracy for over a decade.
他为能在当地的司法办公室工作超过十年而感到自豪。
C1 noun /fɔːrˈmæl.ə.ti/

Formality

形式
Meaning
the rigid observance of rules of convention or etiquette; a thing done simply to comply with requirements
Example
The signing of the contract was just a formality; the deal was already agreed upon.
签署合同只是一个形式；交易已经达成。
C1 verb ˈrɛk.tɪ.faɪ

rectify

纠正
Meaning
To correct mistakes or make something right.
Example
The company took steps to rectify its financial mistakes.
公司采取了措施来纠正其财务错误。
A2 adverb /ˈsloʊli/

slowly

慢慢地
Meaning
in a slow manner
Example
She walked slowly to the door.
她慢慢地走向门。
B2 noun /tɔːrˈneɪdoʊ/

tornado

龙卷风
Meaning
a rapidly rotating column of air in contact with the ground and clouds, often destructive
Example
The tornado destroyed several houses in the village.
龙卷风摧毁了村子里的几座房子
C1 noun ˌlɪt.ɪˈɡeɪ.ʃən

litigation

诉讼
Meaning
The process of taking legal action; a lawsuit.
Example
The litigation accused the regime of human rights abuses.
诉讼指控政权侵犯人权。
B1 verb /ˌɪntəˈrʌpt/

interrupt

打断
Meaning
to stop someone from speaking or doing something by suddenly saying or doing something
Example
She tried not to interrupt while he was speaking.
她尽量不在他说话时打断他。
C2 noun /poʊˈzɜːr/

poseur

Meaning
A person who pretends to be something they are not, often to impress others.
Example
Many considered him a poseur because he exaggerated his accomplishments.
C1 adverb /ˈnæroʊli/

Narrowly

勉强地; 刚好
Meaning
by a small margin; barely; in a limited way
Example
She narrowly escaped the accident.
她差点逃脱了事故。
C2 adjective /ˌɪrɪˈfrændʒɪbəl/

irrefrangible

不可侵犯的
Meaning
Not to be broken, violated, or infringed
Example
The constitution guarantees certain irrefrangible rights to every citizen.
宪法保证每个公民享有某些不可侵犯的权利。
C1 noun /ˈliːvˌteɪ.kɪŋ/

leave-taking

告别
Meaning
an act of saying goodbye; farewell
Example
His leave-taking from his friends was emotional.
他向朋友的告别是感人的。
C1 adjective /ˈɪnbɔːrn/

Inborn

与生俱来的; 天生的; 内在的
Meaning
existing from birth; natural; inherent
Example
She has an inborn talent for music.
她有天生的音乐才能。
B2 noun ˌnæv.ɪˈɡeɪ.ʃən

navigation

导航
Meaning
The process or activity of accurately ascertaining one's position and planning and following a route.
Example
GPS technology has improved the navigation of self-driving cars.
GPS 技术改进了自动驾驶汽车的导航。
C1 verb /weɪn/

wane

减少
Meaning
To decrease gradually in power, intensity, or size.
Example
The moon wanes after the full moon night.
月亮在满月之夜后开始减退。
B1 noun /ˌpɒp.jəˈlær.ə.ti/

Popularity

受欢迎程度
Meaning
the state of being liked, admired, or supported by many people
Example
The singer's popularity has grown rapidly this year.
歌手的流行度今年快速增长。
A1 noun /ˈfraɪ.deɪ/

friday

星期五
Meaning
the day of the week following Thursday and preceding Saturday
Example
We have a team meeting every Friday afternoon.
我们每个星期五下午都有团队会议。
B2 noun /ˈkʌs.tə.mər rɪˈten.ʃən/

Customer Retention

客户保持
Meaning
The ability of a company or product to retain its customers over some specified period.
Example
High customer retention increases business sustainability.
高客户保持率增加了商业可持续性。
C1 noun /kwɜːrk/

Quirk

怪癖; 习惯
Meaning
a peculiar behavioral habit; an unexpected turn or twist
Example
Her quirk of always wearing mismatched socks made her unique.
她总是穿着不配的袜子，这个怪癖使她与众不同。
C2 adjective /ˈlæk.rɪ.moʊs/

lachrymose

流泪的，悲伤的
Meaning
tearful or given to weeping; sad and mournful
Example
The movie's lachrymose ending left the audience in tears.
电影的悲伤结局让观众泪流满面。
C2 verb /ˈɛksplɪkeɪt/

explicate

解释
Meaning
to make an idea or principle clear by explaining it in detail
Example
The professor tried to explicate the theory of relativity for his students.
教授试图为他的学生解释相对论的理论。
C1 adjective ˈtæktɪkəl

tactical

战术
Meaning
Relating to or constituting actions carefully planned to gain a specific military or political end.
Example
Tactical thinking is crucial in business negotiations.
战术思维在商业谈判中至关重要。
C2 adjective /aɪˈsɒ.krə.nəs/

isochronous

等时间间隔发生
Meaning
Occurring at equal time intervals; in unison or synchrony.
Example
The pendulum swings are isochronous, repeating at equal intervals.
摆锤的摆动是等时性的，在相等的时间间隔重复。
B2 adjective /ɪˈmens/

Immense

巨大的; 庞大的; 无限大的
Meaning
extremely large or great; huge
Example
The immense mountain range stretched across the horizon.
那座巨大的山脉横跨了地平线。
B2 noun /ɪkˈskɜː.ʃən/

Excursion

短途旅行；旅游
Meaning
a short journey or trip, especially one engaged in as a leisure activity
Example
The school organized an excursion to the science museum for all students.
学校为所有学生组织了去科学博物馆的短途旅行。
B2 noun, verb /laʊndʒ/

lounge

休息室
Meaning
A public room for relaxing; or to sit, lie, or stand in a relaxed way.
Example
They lounged on the sofa after dinner.
他们在晚餐后懒洋洋地躺在沙发上。
B2 noun /ˈpɪl.ɡrɪm/

Pilgrim

朝圣者; 旅行者
Meaning
a person who journeys to a sacred place for religious reasons; a traveler
Example
The pilgrim walked for days to reach the holy shrine.
朝圣者走了好几天才到达圣地。
C2 adjective /prɪˈzʌmptɪv/

presumptive

推定的
Meaning
Based on probability or assumption rather than proof.
Example
She is the presumptive nominee for the party.
她是该党的推定候选人。
A2 noun /dɪˈsɪʒ.ən/

Decision

决定
Meaning
a conclusion or resolution reached after consideration; the action of deciding
Example
Making the right decision required careful analysis of all available options.
做出正确的决定需要对所有可用选项进行仔细分析。
C1 noun /twɪt/

Twit

傻瓜; 嘲笑
Meaning
a silly or foolish person; to tease or make fun of someone
Example
Don't be such a twit and listen carefully.
不要做傻瓜，仔细听。
B1 noun /ˌkrɪstiˈænɪti/

christianity

基督教
Meaning
the religion based on the teachings of Jesus Christ
Example
Christianity has millions of followers around the world.
基督教在全世界有数百万信徒。
C2 noun /kəˈbɑl/

Cabal

阴谋集团
Meaning
a secret political clique or faction
Example
The journalists exposed a cabal of corrupt politicians working together.
记者揭露了一个腐败政治家的秘密团体，他们一起合作。
C2 noun /ˈsɛnʃəns/

sentience

感知能力
Meaning
The capacity to feel, perceive, or experience subjectively.
Example
Many argue that animals possess sentience.
许多人认为动物具有感知能力。
B1 noun /ˈtreɪlər/

trailer

预告片 / 拖车
Meaning
a preview of a movie or a vehicle used for transporting goods
Example
The movie trailer was released last week.
电影预告片上周发布了。
C2 adjective /ˈkɒnfluənt/

confluent

汇流
Meaning
Flowing together or merging; coming together at one point.
Example
The confluent streams formed a mighty river.
汇流的溪流形成了一条强大的河流。
C2 noun /ˈnɪk.næk/

knickknack

幸福
Meaning
A small decorative object, especially in a house.
Example
The shelf was full of little knickknacks collected from their travels.
当她收到奖项时，她无法隐藏自己的幸福。
A1 verb /weɪt/

wait

等待
Meaning
to stay in expectation; to delay action until something happens
Example
Please wait here while I get the documents.
请在这里等待，我去拿文件。
C2 noun /mjuːˈnɪfəsəns/

munificence

慷慨
Meaning
great generosity or lavish giving
Example
The hospital was built thanks to the munificence of a wealthy donor.
医院的建成得益于一位富有捐赠者的慷慨。
B1 noun /ˈkɑn.fɪ.dəns/

Confidence

自信
Meaning
the feeling or belief that one can rely on someone or something; firm trust; self-assurance
Example
She spoke with great confidence during the job interview.
她在面试中表现出极大的自信。
C1 noun /ˈfiː.nɪks/

phoenix

凤凰鸟
Meaning
a mythical bird that is reborn from its ashes; symbol of immortality or renewal
Example
The legend says the phoenix rises from its ashes every 500 years.
传说凤凰每500年从自己的灰烬中复生。
C2 adjective /ɪˈrɛfrəɡəbəl/

irrefragable

不可辩驳
Meaning
Impossible to refute, deny, or break
Example
The lawyer presented irrefragable evidence that proved his client’s innocence.
律师提供了不可辩驳的证据，证明了他客户的无辜。
A2 noun /wɔːr/

War

战争
Meaning
a state of armed conflict between different countries or different groups within a country
Example
The war lasted for five years and caused great destruction.
战争持续了五年，并造成了巨大的破坏。
B1 noun /ˈpæsɪdʒ/

passage

狭窄的通道; 片段/引用; 从一个状态或地方到另一个的过程
Meaning
a narrow way through or between; a section of text or music; the process of moving from one state or place to another
Example
The narrow passage led from the courtyard to the library.
狭窄的通道从庭院通向图书馆。
C2 adjective /ˈfɪt.fəl/

fitful

间歇性
Meaning
occurring in irregular bursts; not continuous or steady
Example
He had a fitful sleep due to the storm.
由于暴风雨，他有间歇性的睡眠。
C2 adjective səˈluː.bri.əs

salubrious

有益健康的
Meaning
Health-giving; healthy; promoting health and well-being.
Example
The mountain air is salubrious and refreshing.
山中的空气有益健康且清新。
B2 noun /ˈwɪldərnəs/

Wilderness

荒野; 无人区; 沙漠
Meaning
an uncultivated, uninhabited, and inhospitable region; a wild or uncultivated state
Example
They got lost in the wilderness for three days.
他们在荒野中迷路了三天。
C2 verb /rɪˈtrɛntʃ/

retrench

减少开支，裁员
Meaning
to reduce costs, spending, or staff to save resources
Example
The company had to retrench employees due to financial difficulties.
公司由于财务困难不得不裁员。
B2 noun /sɪnˈserɪti/

Sincerity

真诚
Meaning
the quality of being free from pretense or deceit; honesty
Example
His sincerity in apologizing was evident to everyone.
他在道歉时的真诚对所有人都显而易见。
B2 noun /ˈfɛə(r)nɪs/

fairness

公平
Meaning
the quality of being free from bias, favoritism, or injustice
Example
She always strives for fairness in her decisions.
她总是努力在决策中保持公平。
C1 noun /ɪˈreləvəns/

irrelevance

无关性
Meaning
the quality of not being connected to or important for a particular matter; lack of significance
Example
His long explanation only highlighted the irrelevance of the details to the main issue.
他冗长的解释只凸显了这些细节与主要问题的无关性。
C1 noun /ˈpriːsɪŋkt/

precinct

区
Meaning
A district or area within the boundaries of a city, often for police or electoral purposes.
Example
She went to vote at her local precinct.
她去了她当地的选区投票。
C1 noun /ˈpraɪ.mər/ (US), /ˈprɪm.ər/ (UK)

primer

入门书籍，底漆
Meaning
A basic introductory book or a substance used to prepare a surface for painting.
Example
He read a primer on programming before starting his course.
他在开始他的课程之前，阅读了一本编程入门书籍。
C1 verb/noun /ˈsɒldər/

solder

焊接
Meaning
To join metal parts together by melting and putting a filler metal into the joint
Example
He soldered the broken wires back together.
他将断裂的电线重新焊接在一起。
B2 adjective /stɪf/

Stiff

僵硬的; 坚固的; 刚硬的
Meaning
not easily bent or changed; rigid; firm
Example
The old wooden board was too stiff to bend.
那块老木板太硬了，弯不起来。
C1 adjective /ˈreɪ.si/

racy

刺激的
Meaning
Lively, entertaining, or slightly shocking (especially in a sexual way).
Example
The novel was full of racy dialogues.
这部小说充满了刺激的对话。
B2 adjective səˈsteɪ.nə.bəl

sustainable

可持续的
Meaning
Able to be maintained at a certain rate or level; conserving an ecological balance.
Example
Sustainable practices mitigate environmental impact.
可持续的实践减少了对环境的影响。
A2 noun ˈɡrænˌpɛrənts

Grandparents

祖父母
Meaning
The parents of one's father or mother.
Example
Grandparents are an important part of the family tree.
祖父母是家谱中的重要部分。
C1 verb /ɪˈlɛktrɪfaɪ/

electrify

通电; 激动
Meaning
to charge with electricity; to excite or thrill intensely
Example
The speaker's speech electrified the audience.
演讲者的演讲让观众感到兴奋。
C1 adjective /ˈplɒd.ɪŋ/

plodding

缓慢且乏味
Meaning
slow-moving and unexciting; showing steady effort
Example
The movie was entertaining but a bit plodding in the middle.
这部电影很有趣，但中间有点缓慢且乏味。
B1 adjective /ˈkɒn.stənt/

Constant

恒定的; 不变的; 稳定的
Meaning
occurring continuously over a period of time; unchanging; steady
Example
The machine runs at a constant speed.
机器以恒定的速度运行。
B2 noun /ˈswɒl.oʊ/

Swallow

燕子
Meaning
a small migratory bird with long wings and a forked tail
Example
The swallow built its nest under the roof.
燕子在屋顶下筑巢。
B2 adjective /ˌmæθəˈmætɪkəl/

mathematical

数学的
Meaning
relating to mathematics or the use of mathematics
Example
The mathematical equation was difficult to solve.
数学方程式很难解。
C1 adjective /ɪmˈprɒbəbl/

improbable

不太可能的
Meaning
Not likely to be true or to happen.
Example
It seems improbable that he will arrive on time.
看起来他准时到达的可能性很小。
A2 noun /saɪt/

sight

视力
Meaning
the ability to see or something that is seen
Example
The sight of the sunset took her breath away.
日落的景象让她屏住了呼吸。