eponym
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C2 noun /ˈɛpənɪm/

eponym

以某人命名的事物
Meaning
A person after whom a discovery, invention, place, or other thing is named.
Example
Sandwich is an eponym named after the Earl of Sandwich.
三明治是一个以三明治伯爵命名的伊波宁。
C1 noun ɪkˌstræp.əˈleɪ.ʃən

extrapolation

外推
Meaning
The action of estimating or concluding something by assuming that existing trends will continue.
Example
His extrapolation of market trends helped in financial planning.
他对市场趋势的外推帮助了财务规划。
B2 noun ɪˈmɪʃ.ən

emission

排放
Meaning
The release or discharge of gases, particles, or other substances into the environment.
Example
Car manufacturers are reducing carbon emissions.
汽车制造商正在减少碳排放。
A1 pronoun /ˈɛvrɪθɪŋ/

everything

一切
Meaning
all things; the whole lot
Example
He packed everything in his suitcase.
他把所有东西都装进了他的行李箱。
C1 adjective ɪˈveɪ.sɪv

evasive

回避的, 狡猾的, 模糊的
Meaning
Tending to avoid commitment or self-revelation, especially by responding only indirectly.
Example
He gave an evasive answer to avoid trouble.
他给出了一个回避的答案，以避免麻烦。
B1 adjective /ɪnˈkɝr.ɪ.dʒɪŋ/

Encouraging

鼓励的; 激励的
Meaning
giving support or confidence; inspiring; motivating
Example
The teacher's encouraging words motivated the students.
老师的鼓励性话语激励了学生。
C2 noun /ɛθˈnɒlədʒi/

ethnology

民族学
Meaning
the study of the characteristics of different peoples and the differences and relationships between them
Example
She specialized in ethnology to better understand cultural diversity.
她专攻民族学，以更好地理解文化多样性。
C1 adjective /ɪˈkwɛstriən/

equestrian

骑术的
Meaning
Relating to horse riding or horseback riders.
Example
She won several equestrian competitions.
她赢得了几场马术比赛。
A2 noun ɪˈvɛnts

events

事件
Meaning
A thing that happens, especially one of importance.
Example
Several events were held across the country.
全国范围内举行了几个事件。
B2 adjective /ɪˈven.tʃu.əl/

Eventual

最终的
Meaning
happening or existing at the end of a process; final; ultimate
Example
The eventual outcome was better than expected.
最终结果比预期的更好。
C1 verb /ɪkˈspend/

expend

花费
Meaning
to use up or consume; to spend energy or resources
Example
He expended all his energy on the project.
他把所有的精力都投入到这个项目上。
C1 noun ɪnˈdaʊmənt

endowment

捐赠, 赠款
Meaning
An income or form of property given or bequeathed to someone.
Example
The university received a large endowment for research.
大学收到了大量用于研究的捐赠。
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。
C1 verb /ɪkˈstoʊl/

extol

赞扬
Meaning
to praise enthusiastically and highly
Example
The teacher extolled the student's dedication and hard work.
老师赞扬了学生的奉献和辛勤工作。
B1 verb /ˌɛntərˈteɪn/

entertain

Meaning
to provide amusement, enjoyment, or hospitality to others
Example
The comedian entertained the audience with his jokes.
C1 noun /ɪɡˌzɪl.əˈreɪ.ʃən/

exhilaration

兴奋或快乐
Meaning
A feeling of excitement, happiness, or elation.
Example
The feeling of exhilaration after a roller-coaster ride is amazing.
过山车后的兴奋感真是不可思议。
C2 noun ˈɛn.ɡræm

Engram

大脑中用于存储和提取记忆的物理标记
Meaning
Physical signs or patterns in the brain for memory storage and retrieval
Example
Scientists study engrams to understand how memories are stored.
科学家们研究恩格拉姆，以了解记忆是如何存储的。
B2 adjective ˌɒn.trə.prəˈnɜː.ri.əl

entrepreneurial

企业家精神
Meaning
Relating to or characterized by the activity of setting up a business or businesses, taking on financial risks in the hope of profit.
Example
His entrepreneurial spirit led him to establish a successful startup.
他的企业家精神使他创办了一个成功的创业公司。
B2 adjective /ɪkˈsɛntrɪk/

eccentric

古怪的
Meaning
unconventional and slightly strange in behavior or appearance
Example
The artist was known for his eccentric style.
艺术家以其古怪的风格而闻名。
C2 noun ˌiːkwəˈnɪməti

equanimity

心理平静、沉着和均衡，尤其在困难情况下
Meaning
Mental calmness, composure, and evenness of temper, especially in a difficult situation.
Example
She handled the news with remarkable equanimity.
她以非凡的冷静处理了这个消息。
C2 noun /ˈjuːfəni/

euphony

和谐的音调
Meaning
The quality of being pleasing to the ear, especially through harmonious combination of words.
Example
The orator's speech was full of euphony and rhythm.
演讲者的演讲充满了和谐的音韵和节奏。
C1 adverb ɪkˌsperɪˈmentəli

experimentally

实验性地
Meaning
In a way that is based on or derived from experiment and observation rather than theory.
Example
Bose demonstrated findings experimentally.
Bose 通过实验性地展示了结果。
C1 noun /ˌɛks.həˈleɪ.ʃən/

exhalation

呼气
Meaning
The action of breathing out.
Example
Slow exhalation calms the nervous system.
缓慢的呼气使神经系统平静。
A2 adjective /ɪmˈbærəst/

embarrassed

尴尬
Meaning
feeling awkward, ashamed, or self-conscious about something
Example
He felt embarrassed when he forgot her name.
当他忘记她的名字时，他感到尴尬。
B1 adverb /ɪˈventʃuəli/

Eventually

最终; 最后
Meaning
in the end; finally; at last
Example
After years of hard work, she eventually became a doctor.
经过多年的努力工作，她最终成了医生。
B1 adjective /ɪɡˈzækt/

Exact

精确的; 正确的; 完全正确
Meaning
precise; accurate; completely correct
Example
Please give me the exact time of the meeting.
请告诉我会议的准确时间。
B2 adjective ˈɛvɪdənt

evident

明显的
Meaning
Clearly seen or understood; obvious.
Example
The result was evident.
结果是显而易见的。
B1 adjective /ˈɛd.jʊ.keɪ.tɪd/

educated

有教养的
Meaning
Having received a good level of formal schooling or training; knowledgeable
Example
She is an educated woman who values lifelong learning.
她是一个受过良好教育的女性，重视终身学习。
C2 adjective /ˌɛf.ɪˈkeɪ.ʃəs/

efficacious

有效的
Meaning
Successful in producing a desired or intended result; effective.
Example
The vaccine proved highly efficacious in preventing infections.
疫苗在预防感染方面证明是非常有效的。
C1 verb /ɪɡˈzɔːlt/

exalt

Meaning
to praise highly or raise in rank, honor, or power
Example
The community exalted the teacher for his dedication.
C1 adjective /ˌɛpɪˈsɒdɪk/

episodic

集集式的
Meaning
Happening occasionally or in separate parts; related to episodes.
Example
Her interest in art was episodic, coming and going over the years.
她对艺术的兴趣是间歇性的，随着岁月的流逝而来又去。
B1 verb /ˈedɪt/

edit

编辑
Meaning
to make changes to improve or correct something
Example
I need to edit this document before submission.
我需要在提交之前编辑这个文档。
B2 noun ɪnˈɡeɪdʒɪŋ ˈlɜːrnɪŋ ɪkˈspɪəriənsɪz

engaging learning experiences

引人入胜的学习体验
Meaning
Interactive and immersive educational activities that capture students' attention and actively involve them in the learning process.
Example
Digital tools create engaging learning experiences.
数字工具创造引人入胜的学习体验。
B1 adjective ɪˈfɪʃ.ənt

efficient

高效
Meaning
Working in a well-organized way; competent and effective in performance.
Example
Efficient farming methods improve yields.
高效的农业方法提高产量。
C2 adjective /ɪˈpɪstələri/

epistolary

书信体
Meaning
Related to the writing of letters; expressed in or through letters.
Example
The novel is written in an epistolary style, consisting of letters between characters.
这本小说是以书信体风格写的，由人物之间的信件组成。
B1 noun /ˌek.spləˈneɪ.ʃən/

Explanation

解释; 阐明;
Meaning
a statement or account that makes something clear; clarification of meaning
Example
The teacher gave a detailed explanation of the complex mathematical concept.
老师详细解释了这个复杂的数学概念。
C1 noun/verb /ɪˈstiːm/

esteem

尊敬
Meaning
Respect and admiration, typically for a person.
Example
She is held in high esteem by her colleagues.
她受到了同事们的高度尊敬。
C1 verb /ˈɛkskəˌveɪt/

excavate

幸福
Meaning
to dig out or remove earth carefully, often for building or archaeological purposes
Example
The workers excavated the site to prepare for construction.
她在收到奖项时，无法掩饰她的幸福。
C1 verb /ɪnˈsɜːrkəl/

encircle

围绕
Meaning
to form a circle around something
Example
The protesters encircled the building in a human chain.
抗议者围绕着建筑物站成一条人链。
C1 verb /ɪnˈtaɪs/

entice

引诱
Meaning
to attract or tempt someone by offering something appealing
Example
The advertisement was designed to entice customers into the store.
广告被设计来吸引顾客进店。
C1 adjective /ɪkˈspiːdiənt/

expedient

权宜之计
Meaning
suitable or convenient for achieving a particular end, sometimes at the expense of morality
Example
It was expedient to take the shortcut despite the risks.
尽管有风险，走捷径是权宜之计。
C1 adjective /ɪnˈlaɪ.tənd/

Enlightened

开明的; 觉悟的; 智慧的;
Meaning
having or showing a rational, modern outlook; having spiritual knowledge or understanding
Example
The enlightened teacher shared wisdom with all her students.
那位开明的老师与她的所有学生分享了智慧。
B1 noun /ˌiːkəˈnɒmɪks/ or /ˌɛkəˈnɒmɪks/

economics

经济学
Meaning
The study of production, consumption, and transfer of wealth.
Example
He is studying economics at university.
他在大学学习经济学。
C1 noun /ˌɛksɪˈkjuːʃənər/

executioner

刽子手
Meaning
A person who carries out a death sentence by execution.
Example
The executioner prepared the gallows for the condemned prisoner.
刽子手为被定罪的囚犯准备了绞刑架。
B2 adjective /ɪkˈsploʊsɪv/

explosive

爆炸性
Meaning
able to cause an explosion; likely to burst out suddenly
Example
The situation became explosive after the argument.
争论后局势变得爆炸性。
C1 verb /ɪˈspaʊz/

espouse

支持
Meaning
To adopt or support a cause, belief, or way of life.
Example
She espoused the philosophy of nonviolence throughout her career.
她在整个职业生涯中支持了非暴力的哲学。
C1 adjective /ɪmˈbrɔɪld/

embroiled

卷入
Meaning
being deeply involved in a difficult situation, conflict, or scandal
Example
She found herself embroiled in a heated family dispute.
她发现自己卷入了一场激烈的家庭争执。
C1 adjective /ˈen.vi.ə.bəl/

Enviable

值得羡慕的
Meaning
causing envy; desirable
Example
Her success was enviable among her peers.
她的成功在同事中是值得羡慕的。
C2 noun /ɪˌnʌn.siˈeɪ.ʃən/

enunciation

发音，清晰发音
Meaning
The act of saying or pronouncing words clearly and distinctly.
Example
His enunciation was clear during the presentation.
他的发音在演讲中很清晰。
C2 adjective /ɪˈfʌldʒənt/

effulgent

灿烂
Meaning
Shining brilliantly; radiant.
Example
Her effulgent smile brightened everyone's mood.
她那灿烂的微笑照亮了每个人的心情。
A1 adjective/adverb /ˈɜːrli/

early

早
Meaning
before the usual or expected time
Example
She arrived early to the meeting.
她早早到达了会议。
B1 noun ˈem.fə.sɪs

emphasis

重音
Meaning
Special importance, value, or prominence given to something; stress laid on a particular point or aspect.
Example
The speaker placed emphasis on sustainable development.
演讲者强调了可持续发展。
C1 verb /ɪkˈspaʊnd/

expound

详细阐述
Meaning
to present and explain in detail
Example
The professor expounded the theory in simple terms.
教授用简单的术语详细阐述了这个理论。
B1 noun /ɪnˈθjuː.zi.æz.əm/

Enthusiasm

热情; 兴奋; 激情
Meaning
intense and eager enjoyment, interest, or approval
Example
Her enthusiasm for the project inspired the entire team.
她对这个项目的热情鼓舞了整个团队。
B2 verb /ɪnˈkaʊntər/

encounter

遇见 / 遇到
Meaning
to unexpectedly meet someone or experience something, especially something difficult or new
Example
During the hike, we encountered a wild bear.
在徒步旅行中，我们遇到了一只野生熊。
C2 noun /ˈɪəri/

eyry

猛禽巢
Meaning
an alternative spelling of eyrie; a nest of a bird of prey
Example
The falcon guarded its eyry fiercely.
猎鹰猛烈地守护着它的巢。
C1 noun /ˈiːkwɪnɒks/

equinox

昼夜平衡
Meaning
The time or date when day and night are of equal length, occurring twice a year.
Example
The spring equinox marks the beginning of longer days.
春分标志着白天时间变长的开始。
C1 adjective /ˈɜːrθi/

earthy

泥土味的 / 简单
Meaning
resembling or suggestive of earth or soil; simple, natural, and sometimes coarse
Example
The dish had a rich, earthy flavor from the mushrooms.
这道菜有着来自蘑菇的丰富泥土味。
C1 noun ˈɛksəʊˌplænɪt

exoplanet

绕着一颗恒星公转的星球，位于太阳系外
Meaning
A planet that orbits a star outside the solar system.
Example
Astronomers have discovered thousands of exoplanets in the last decade.
天文学家在过去十年发现了成千上万的外行星。
B1 verb /ɪkˈspɔːrt/

export

出口
Meaning
to send goods or services to another country for sale
Example
The company exports cars to many countries.
公司将汽车出口到许多国家。
C1 adjective + noun এক্সেসিভ স্ট্রেইন

excessive strain

过度的压力
Meaning
An amount of physical pressure or stress that is more than what is normal or acceptable.
Example
Excessive strain on fingers can cause musculoskeletal issues.
手指上的过度压力可能导致肌肉骨骼问题。
A1 noun /ɪər/

Ear

耳朵; 听力; 听的能力
Meaning
the organ of hearing; the ability to hear or listen
Example
She whispered something in his ear during the meeting.
她在会议期间低声在他耳边说了些什么。
B2 verb /ɪˈkwɪp/

equip

装备
Meaning
to provide someone or something with the necessary items or skills for a task
Example
The school equipped its students with modern technology.
学校为学生配备了现代科技。
C2 verb /ɪˈmæskjʊleɪt/

emasculate

削弱
Meaning
To make someone weaker or less effective; to deprive of strength or vigor.
Example
The constant criticism emasculated his confidence.
不断的批评削弱了他的信心。
C2 verb /ˌɛfəˈvɛs/

effervesce

起泡
Meaning
To give off bubbles of gas; to show excitement, liveliness, or enthusiasm.
Example
The soda began to effervesce as soon as it was opened.
汽水打开后开始起泡。
C2 verb /ɪˈvɪns/

evince

展示
Meaning
to show or demonstrate clearly
Example
She evinced her interest in the project through active participation.
她通过积极参与展示了对该项目的兴趣。
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 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。
C1 verb /ɜːr/

err

犯错
Meaning
to make a mistake or be incorrect
Example
To err is human, to forgive divine.
犯错是人类的本性，宽恕是神圣的。
C2 noun /ɪˌpɪstəˈmɒlədʒɪst/

epistemologist

认识论者
Meaning
A scholar or expert who studies the nature, sources, and limits of knowledge.
Example
The epistemologist debated how humans can truly know anything with certainty.
认识论者辩论了人类如何能够确信地知道某些事情。
B2 adjective ˈel.ɪ.dʒə.bəl

eligible

有资格的
Meaning
Having the right to do or obtain something through satisfaction of the appropriate conditions.
Example
Only eligible candidates are considered for appointments.
只有有资格的候选人才会被考虑任命。
C1 noun /ˌiː.kəˈnɒm.ɪk dɪˈspær.ɪ.ti/

Economic Disparity

经济不平等
Meaning
The unequal distribution of income and opportunity between different groups in society.
Example
Addressing economic disparity is crucial for social stability.
解决经济不平等问题对社会稳定至关重要。
B2 adjective /ˌɛm.pəˈθɛ.tɪk/

empathetic

富有同理心
Meaning
Showing ability to understand and share feelings of others.
Example
She was empathetic towards her friend's struggles.
她对朋友的挣扎表现出富有同理心。
B2 verb ɪˈmɜːdʒɪz

emerges

浮现
Meaning
To come forth, appear, or arise from something
Example
A major health crisis emerges from pollution.
一个重大的健康危机从污染中浮现。
C1 noun ɪˌməʊ.ʃəˈnæl.ɪ.ti

emotionality

情感性
Meaning
The quality of being driven by emotions rather than reason; emotional responsiveness.
Example
His emotionality often influenced his decisions.
他的情感性常常影响他的决策。
C1 adjective /ɪɡˈzuːbərənt/

exuberant

欣喜若狂
Meaning
full of energy, excitement, and cheerfulness
Example
The children were exuberant after winning the game.
孩子们在赢得比赛后欣喜若狂。
A1 adverb /ˈevər/

Ever

曾经; 总是; 以任何方式
Meaning
at any time; always; in any way
Example
Have you ever been to Paris?
你曾经去过巴黎吗?
B2 verb/noun /ɪɡˈzɪbɪt/

exhibit

展出
Meaning
To display or show publicly; something put on display.
Example
The museum will exhibit ancient artifacts.
博物馆将展出古代文物。
B2 noun /ɪˈsteɪt/

estate

Meaning
A large area of land, property, or possessions owned by someone, often including a big house.
Example
The family owned a large estate in the countryside.
C2 adjective /ˌiːvənˈhændɪd/

evenhanded

公正无私
Meaning
Fair and impartial; showing no bias or favoritism.
Example
The judge was praised for her evenhanded approach to the case.
法官因其公正无私的案件处理方式而受到赞扬。
B1 verb /ɪnˈʃʊər/

ensure

确保
Meaning
To make certain that something will happen or be the case.
Example
Please ensure that the door is locked before you leave.
请确保在离开之前门已锁好。
B2 adjective /ɪˈlæs.tɪk/

Elastic

弹性
Meaning
able to stretch and return to original shape; flexible; adaptable
Example
The elastic band can stretch and return to its original shape.
弹性带可以拉伸并恢复到原来的形状。
C2 noun /ˌɛksaɪˈteɪʃən/

excitation

兴奋
Meaning
a state of great excitement or the process of stimulating activity
Example
The news created great excitation among the fans.
这条新闻在球迷中引起了极大的兴奋。
C2 verb /ɪˈstreɪndʒ/

estrange

Meaning
to cause someone to no longer be close or affectionate; to alienate
Example
His constant criticism began to estrange him from his friends.
C1 noun /ˈɛpɪθɛt/

epithet

绰号
Meaning
A descriptive phrase or word used to characterize someone or something, often as a nickname.
Example
He earned the epithet ‘The Great’ for his remarkable achievements.
由于其卓越的成就，他赢得了‘伟大’的绰号。
C1 verb /ɪnˈdaʊ/

endow

Meaning
To provide with a quality, ability, or gift; to donate funds for a purpose.
Example
The university was endowed with a generous donation.
B2 noun /ˈɜːrnər/

earner

收入者
Meaning
A person who earns money through work or business
Example
She is the primary earner in her family.
她是家庭中的主要收入者。
C2 adjective /ˌɛl.ɪˈmɑː.səˌnɛr.i/

eleemosynary

慈善的
Meaning
Relating to charity; dependent on or supported by charity.
Example
The hospital was founded as an eleemosynary institution.
医院作为一个慈善机构成立。
C1 adjective /ˌɛnɪɡˈmætɪk/

enigmatic

神秘的
Meaning
mysterious and difficult to interpret or understand
Example
He gave me an enigmatic smile.
他给了我一个神秘的微笑。
C1 adjective /ɪnˈtrɛntʃt/

entrenched

根深蒂固
Meaning
Firmly established and unlikely to change.
Example
Corruption is deeply entrenched in the system.
腐败在这个系统中根深蒂固。
C1 verb /ˈiːvzdrɒp/

eavesdrop

偷听
Meaning
to secretly listen to a conversation
Example
She stood near the door to eavesdrop on their conversation.
她站在门口偷听他们的谈话。
C1 noun /ˈiːdɪkt/

edict

法令
Meaning
An official order, proclamation, or decree issued by an authority.
Example
The king issued an edict banning smoking in public places.
国王发布了一个禁烟令，禁止在公共场所吸烟。
A2 noun /ɪɡˈzæm/

exam

考试
Meaning
a formal test of a person's knowledge or skill in a subject
Example
She studied hard for her final exam.
她为了最后的考试努力学习。
C1 adjective /ɛnˌsaɪkləˈpiːdɪk/

encyclopedic

百科全书的
Meaning
Having comprehensive knowledge of many subjects; relating to or characteristic of an encyclopedia.
Example
Her encyclopedic knowledge of history amazed everyone at the conference.
她对历史的百科全书式知识令会议上的所有人都惊讶不已。
B2 verb /ɪˈlɪmɪneɪt/

eliminate

消除
Meaning
To completely remove or get rid of something.
Example
Eliminate time-wasting habits.
消除浪费时间的习惯。
B2 noun /ˈɪə.rə/

Era

时代
Meaning
a long and distinct period of history with a particular feature or characteristic
Example
The Renaissance was an era of great artistic and cultural achievement.
文艺复兴是一个伟大的艺术和文化成就的时代。
B1 adjective /ɪnˌvaɪrənˈmɛntl/

environmental

环境的
Meaning
relating to the natural world and the impact of human activity on its condition
Example
The company adopted new policies to reduce environmental damage.
公司采取了新的政策以减少环境损害。
C2 verb /ɪˈspaɪ/

espy

看到
Meaning
To catch sight of or notice something, especially from a distance.
Example
From the hilltop, she espied a small village in the valley.
从山顶上，她看见了谷中的一个小村庄。
C1 verb /iːk/

eke

节省
Meaning
to make a small amount of something last longer by using it sparingly
Example
The family tried to eke out their savings during the tough months.
这个家庭在艰难的月份里尽量节省他们的积蓄。
C1 verb /ɪnˈθjuːz/

enthuse

激动
Meaning
to express excitement or admiration
Example
She enthused about her trip to Italy.
她对她的意大利之旅充满了热情。
A2 adjective /ɪnˈdʒɔɪ.ə.bəl/

Enjoyable

愉快的; 令人愉悦的
Meaning
pleasant; giving satisfaction or pleasure
Example
The movie was very enjoyable and made everyone laugh.
这部电影非常愉快，让每个人都笑了。
C1 adjective ɪˌɡæl.ɪˈteə.ri.ən

egalitarian

平等主义
Meaning
Believing in or based on the principle that all people are equal and deserve equal rights and opportunities.
Example
The new law promotes an egalitarian society.
新法律促进了平等主义社会的发展。
C2 noun /ˈɛkwɪpɪdʒ/

equipage

装备或带有配件的马车
Meaning
Equipment or a carriage with its accessories.
Example
The nobleman arrived in a grand equipage.
贵族乘坐豪华马车到达。
B1 adjective /ˈel.ɪ.ɡənt/

Elegant

优雅的
Meaning
graceful and stylish; refined; sophisticated
Example
She wore an elegant dress to the party.
她穿着一件优雅的连衣裙去参加聚会。
C1 verb /ɪɡˈzuːd/

exude

流露
Meaning
to display a quality strongly and openly; to release a liquid or smell slowly
Example
He exudes confidence whenever he speaks in public.
他每次在公众场合讲话时都会散发出自信。
C1 adjective /ɪˈfɛm.ər.əl/

ephemeral

短暂
Meaning
Lasting for a very short time; temporary or transitory.
Example
The beauty of cherry blossoms is ephemeral.
樱花的美丽是短暂的。
C1 noun /ɛnˈdɔːr.fɪnz/

endorphins

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

encroach

幸福
Meaning
to gradually take over or intrude on someone’s rights, territory, or space
Example
The buildings began to encroach on the protected forest land.
当她获得奖项时，她无法掩饰自己的幸福。
B2 noun ˈiː.kəʊˌsɪs.təm

ecosystem

生态系统
Meaning
A biological community of interacting organisms and their physical environment.
Example
A balanced ecosystem is crucial for environmental sustainability.
平衡的生态系统对环境可持续性至关重要。
C2 noun /ɪnˈkʌmbrəns/

encumbrance

负担 / 障碍
Meaning
a burden or obstacle that makes progress or movement difficult
Example
Debt can become a serious encumbrance in life.
债务可能成为生活中的严重负担。
B2 noun /ˈɛntəti/

entity

实体
Meaning
something that exists as a single and complete unit; an organization or being
Example
The new company will operate as a separate legal entity.
新公司将作为一个独立的法律实体运作。
C2 adjective /ˌɛsəˈtɛrɪk/

esoteric

深奥的
Meaning
intended for or understood by only a small number of people with special knowledge
Example
The professor gave an esoteric lecture on ancient philosophy.
教授做了一场关于古代哲学的深奥讲座。
B2 adjective /ɪnˈtaɪtəld/

entitled

有权
Meaning
having the right to do or have something; feeling deserving of special treatment
Example
Employees are entitled to paid leave.
员工有权享受带薪休假。
B2 noun /ɪnˈrɪtʃ.mənt/

enrichment

丰富
Meaning
The action of improving or enhancing the quality or value of something.
Example
Cultural enrichment fosters a deeper understanding of traditions.
文化丰富促进对传统的更深理解。
C2 verb /ɛmˈbleɪzən/

emblazon

以显著的方式展示
Meaning
To decorate or display something in a noticeable or impressive way.
Example
The team's logo was emblazoned on their uniforms.
团队的标志被显著地展示在他们的制服上。
B1 adjective /ɪnˈtaɪər/

Entire

完整的; 完全的; 不分割的
Meaning
complete; whole; not divided or in parts
Example
She read the entire book in one sitting.
她一口气读完了整本书。
C2 adjective /ɪˈkwɪvəkəl/

equivocal

模棱两可
Meaning
Open to more than one interpretation; ambiguous.
Example
His equivocal answer confused everyone.
他的模棱两可回答让大家困惑。
B1 adjective /ˈɛnd.ləs/

Endless

无尽的; 无限的; 不受限制的
Meaning
having no end; infinite; limitless
Example
The ocean seemed endless from the shore.
从海岸看，海洋似乎是无尽的。
C2 noun /ɪˈskʌtʃən/

escutcheon

带有家族徽章的盾牌
Meaning
a shield or emblem bearing a coat of arms
Example
The family crest was displayed on the escutcheon above the fireplace.
家族徽章展示在壁炉上方的盾牌上。
C1 noun /ɪˈklɪps/

Eclipse

日蚀 (太阳或月亮)
Meaning
an obscuring of light from one celestial body by another; a decline or loss
Example
The total solar eclipse darkened the sky for several minutes.
完全的太阳日食让天空暗了好几分钟。
C2 verb /ɛnˈfrænˌtʃaɪz/

enfranchise

幸福
Meaning
To grant the right to vote or other rights of citizenship.
Example
The new law enfranchised thousands of people.
当她收到奖项时，她无法掩饰自己的幸福。