effectiveness
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B2 noun /ɪˈfɛktɪvnəs/

effectiveness

效能
Meaning
the degree to which something is successful in producing a desired result.
Example
The effectiveness of the new policy is still being evaluated.
新政策的效能仍在评估中。
B2 noun /ˌekspləˈreɪʃən/

exploration

探索
Meaning
the action of traveling through or studying an area to learn more about it
Example
Space exploration has expanded our understanding of the universe.
太空探索扩展了我们对宇宙的理解。
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。
B2 verb ɪmˈpaʊərɪŋ

empowering

授权
Meaning
Giving someone the authority or power to do something; making someone stronger and more confident.
Example
Empowering children can lead to societal progress.
授权儿童可以促进社会进步。
B2 verb /ɪɡˈzædʒəˌreɪt/

exaggerate

夸大
Meaning
to describe something as better, worse, or more important than it really is
Example
He tends to exaggerate his achievements.
他倾向于夸大自己的成就。
B2 verb /ɪnˈdjʊər/

endure

忍受
Meaning
to suffer something difficult or unpleasant patiently
Example
He had to endure years of hardship before achieving success.
他必须忍受多年的困苦，才能取得成功。
B2 noun /ˌek.spɪˈdɪʃ.ən/

Expedition

远征
Meaning
a journey undertaken by a group of people with a particular purpose; organized trip for exploration
Example
The mountain climbing expedition required months of careful planning and preparation.
登山远征需要数月的精心规划和准备。
B2 noun /ˈɛθɪk/

ethic

伦理
Meaning
a set of moral principles, especially ones relating to a particular group, system, or profession
Example
He has a strong work ethic and always meets deadlines.
他有很强的工作伦理，总是能按时完成任务。
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 verb ˈeksɪkjuːt

execute

执行
Meaning
To carry out or put into effect a plan, order, or course of action.
Example
NASA plans to execute the mission in three phases.
NASA计划在三个阶段执行任务。
B2 verb /ɪnˈdɔːrs/

endorse

支持
Meaning
To give approval or support to someone or something; to publicly recommend.
Example
The celebrity endorsed the new skincare product.
这位名人支持了新的护肤产品。
B2 noun /ˌɛksɪˈkjuːʃən/

execution

执行，实施
Meaning
the act of carrying out a plan, order, or legal sentence
Example
The success of a project depends on its proper execution.
项目的成功取决于其正确的执行。
B2 verb /ɪmˈpaʊər/

empower

Meaning
To give someone the power or authority to do something; to make someone stronger or more confident.
Example
Education can empower people to improve their lives.
B2 verb /ˈɛmɪˌɡreɪt/

emigrate

移民
Meaning
To leave one's own country in order to settle permanently in another.
Example
Many people emigrated from Europe to America in the 19th century.
许多人在19世纪从欧洲移民到美国。
B2 verb /ɪmˈbreɪs/

embrace

拥抱
Meaning
to hold someone closely in your arms; to accept willingly
Example
She embraced her friend at the airport.
她在机场拥抱了她的朋友。
B2 verb /ɪˈreɪs/

erase

擦除
Meaning
to remove completely; to delete or wipe out
Example
Use an eraser to erase the pencil marks.
使用橡皮擦来擦掉铅笔痕迹。
B2 verb /ɪkˈskluːd/

exclude

排除
Meaning
To deliberately leave out or prevent someone or something from being included.
Example
The list excludes temporary workers.
该列表排除了临时工。
B2 noun /ˌɛdɪˈtɔːriəl/

editorial

社论
Meaning
A newspaper article expressing the opinion of the editor or publisher.
Example
The newspaper published an editorial criticizing government policy.
报纸发布了一篇批评政府政策的社论。
B2 noun ɪˈfɪʃ.ən.si

efficiency

效率
Meaning
The state or quality of being efficient; achieving maximum productivity with minimum wasted effort or expense.
Example
Efficiency in communication is crucial for businesses.
沟通中的效率对于商业至关重要。
B2 verb /ɪnˈɡeɪdʒɪŋ/

engaging

参与
Meaning
Participating or becoming involved in; occupying or attracting someone's interest or attention.
Example
Engaging youth in education is essential.
让年轻人参与教育至关重要。
B2 adverb /ɪkˈstɜrnəli/

externally

外部地
Meaning
in a way that relates to the outer surface or outside appearance
Example
The building appeared externally modern, but inside it was quite old-fashioned.
这栋建筑外部看起来很现代，但里面相当老式。
B2 noun /ɪkˈskluːʒən/

exclusion

排斥
Meaning
The process or state of being left out or denied access.
Example
The policy led to the exclusion of certain groups.
该政策导致某些群体被排斥。
B2 noun /ɪˈrʌp.ʃən/

Eruption

火山喷发
Meaning
a sudden violent occurrence or outburst; volcanic explosion
Example
The volcanic eruption forced thousands of people to evacuate the area.
火山喷发迫使成千上万的人疏散该地区。
B2 verb /ɪˈveɪd/

evade

回避
Meaning
To escape or avoid something, especially by cleverness or trickery.
Example
He tried to evade the question by changing the subject.
他通过换话题来回避问题。
B2 noun /ɪˈlɛktrɪk drɪl/

Electric drill

电动钻孔机
Meaning
A power tool used for drilling holes in various materials
Example
He used an electric drill to make holes in the wall for hanging pictures.
他用电动钻孔机在墙上打孔，用于挂画。
B2 adjective /ɪkˈsten.sɪv/

Extensive

广泛的; 大规模的; 广阔的
Meaning
covering or affecting a large area; comprehensive; wide-ranging
Example
The company conducted extensive research before launching the new product.
公司在推出新产品之前进行了广泛的研究。
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。
B2 noun /ˈaɪ.lɪd/

Eyelid

眼皮
Meaning
either of the upper or lower folds of skin that cover the eye when closed
Example
Her eyelids felt heavy with sleep.
她的眼皮因睡意而感到沉重。
B2 adjective /ɪɡˈzɔː.stɪd/

exhausted

筋疲力尽
Meaning
Extremely tired; having no energy left.
Example
Feeling exhausted after waking up is common.
醒来后感到筋疲力尽是很常见的。
B2 verb /ɪˈrɛkt/

erect

竖立
Meaning
to build or construct something; to set upright
Example
They erected a statue in the town square.
他们在市中心广场竖立了一个雕像。
B2 adjective /ˈiːtəbl̩/

eatable

可食用
Meaning
suitable or safe for eating
Example
The berries are not only eatable but also quite tasty.
这些浆果不仅可食用，而且味道相当好。
B2 verb /ɪnˈkwaɪər/

enquire

询问
Meaning
to ask for information about something
Example
He enquired about the train schedule.
他询问了列车时刻表。
B2 verb /ɪˈnækt/

enact

制定
Meaning
to make into law; to perform or act out
Example
The government decided to enact a new policy on education.
政府决定制定一项关于教育的新政策。
B2 verb /ɪnˈroʊl/

enroll

注册
Meaning
to officially join or register in a school, course, or organization
Example
He decided to enroll in a computer programming course.
他决定报名参加计算机编程课程。
B2 noun /ˈɛseɪ/

essay

论文
Meaning
A short piece of writing on a particular subject.
Example
She wrote an essay about climate change.
她写了一篇关于气候变化的论文。
B2 verb /ɪnˈlaɪtən/

enlighten

幸福
Meaning
to give someone greater knowledge or understanding about a subject or situation
Example
The teacher tried to enlighten the students about ancient history.
她在收到奖项时无法掩饰自己的幸福。
B2 verb /ɪɡˈzɜrt/

exert

施加
Meaning
to apply or bring to bear; to use physical or mental effort
Example
He exerted all his strength to lift the heavy box.
他全力以赴抬起沉重的箱子。
B2 noun /ˈiː.ɡoʊ/

Ego

自我; 自尊
Meaning
a person's sense of self-esteem or self-importance
Example
His big ego prevented him from accepting criticism from others.
他的自大使他无法接受他人的批评。
B2 verb /ɪnˈfɔːrs/

enforce

执行
Meaning
to make sure that a rule, law, or policy is obeyed
Example
The police are responsible for enforcing the law.
警方负责执行法律。
B2 adjective /ɪɡˈzɑːtɪk/

exotic

异国情调和迷人
Meaning
Unusual and attractive because it is from a foreign place or culture.
Example
The garden was filled with exotic plants from tropical countries.
花园里满是来自热带国家的异国情调植物。
B2 verb, noun /ɪkˈsplɔɪt/

exploit

Meaning
to make full use of and derive benefit from (a resource); to use someone unfairly for one’s own advantage
Example
The company was accused of exploiting child labor.
B2 verb /ɪˈvæljueɪt/

evaluate

评估
Meaning
To assess or judge the value, quality, or significance of something.
Example
The teacher will evaluate the students’ projects tomorrow.
老师明天将评估学生的项目。
B2 noun /ɪˈmɜːrdʒəns/

emergence

出现
Meaning
the process of coming into view, existence, or prominence
Example
The emergence of new technologies has transformed communication.
新技术的出现改变了沟通方式。
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.
B2 adjective /ɪkˈskluːdɪd/

Excluded

被排除; 被孤立
Meaning
not included; left out; barred from participation
Example
He felt excluded from the group activities and conversations.
他感到被排除在小组活动和对话之外。
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。
B2 noun /ˈɛksələns/

excellence

卓越
Meaning
the quality of being outstanding or extremely good
Example
The school is known for its academic excellence.
这所学校因其学术卓越而闻名。
B2 noun /iːz/

Ease

轻松；舒适
Meaning
absence of difficulty or effort; comfort and relaxation
Example
After years of practice, she played the piano with great ease.
经过多年的练习，她弹钢琴时非常轻松。
B2 noun ɪˈmɪʃ.ənz

emissions

排放
Meaning
The production and discharge of something, especially gas, heat, light, or radiation.
Example
Carbon emissions are rising globally.
碳排放在全球范围内上升。
B2 noun ɪkˈspænʃən

expansion

扩展
Meaning
The action of becoming larger or more extensive; growth or development.
Example
Volunteering helps in the expansion of social networks.
志愿服务有助于社交网络的扩展。
B2 verb /ɪkˈspoʊz/

expose

揭示
Meaning
to reveal or uncover; to make visible or known
Example
The investigation exposed the truth about the scandal.
调查揭示了丑闻的真相。
B2 noun ɪnˈhɑːns.mənt

enhancement

增强
Meaning
An increase or improvement in quality, value, or extent.
Example
Enhancement of education quality is vital.
教育质量的提升至关重要。
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。
B2 noun /ɪnˈθuziæst/

enthusiast

爱好者
Meaning
a person who is very interested in a particular activity or subject
Example
He is a football enthusiast and watches every match.
他是一个足球爱好者，看每一场比赛。
B2 noun ˈikoʊ ˈfrɛndli tɛkˈnɑləʤiz

eco-friendly technologies

环保技术
Meaning
Technologies that are designed to minimize environmental impact and promote sustainability.
Example
Eco-friendly technologies can mitigate pollution.
环保技术可以减轻污染。
B2 verb /ɪkˈsploʊd/

explode

爆炸
Meaning
to burst or shatter violently and noisily as a result of rapid combustion or pressure
Example
The bomb exploded in the middle of the street.
炸弹在街中央爆炸了。
B2 verb /ɪmˈbɒdi/

embody

体现
Meaning
To give tangible or visible form to an idea, quality, or feeling.
Example
She embodies the spirit of generosity.
她体现了慷慨的精神。
B2 adjective /ˈɛθnɪk/

ethnic

民族的
Meaning
relating to a population subgroup with a common national or cultural tradition
Example
The festival celebrated the city's diverse ethnic communities.
这个节日庆祝了城市中各种民族的社区。
B2 verb /ɪnˈdeɪndʒər/

endanger

危及
Meaning
To put someone or something at risk or in danger.
Example
Cutting down forests can endanger many species of animals.
砍伐森林可能会使许多物种面临危险。
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。
B2 verb ˈɛkəʊd

echoed

回响
Meaning
To repeat or resound; to be reminiscent of something.
Example
The words of gratitude echoed in his heart.
感恩的言辞在他心中回响。
B2 verb /ɪnˈrɪtʃ/

enrich

丰富
Meaning
To improve or enhance the quality or value of something.
Example
Space exploration enriches human understanding.
太空探索丰富了人类的理解。
B2 noun ˌeksplɔɪˈteɪʃən

exploitation

剥削
Meaning
The action of making use of and benefiting from resources, often in an unfair or selfish way.
Example
Exploitation of marine resources has led to significant damage.
对海洋资源的开发导致了显著的损害。
B2 noun ɪnˈdev.ər

endeavor

努力
Meaning
An attempt to achieve a goal; a serious determined effort.
Example
The endeavor to innovate space tourism is ambitious.
创新太空旅游的努力是雄心勃勃的。
B2 verb ˈɛskəleɪt

escalate

升级
Meaning
To increase rapidly; to become more intense or serious
Example
The aging population is escalating at an alarming rate.
老龄化人口正在以惊人的速度升级。
B2 noun /ˈem.ər.əld/

Emerald

翡翠
Meaning
a bright green precious stone used in jewelry
Example
The emerald necklace sparkled in the sunlight.
翡翠项链在阳光下闪闪发光。
B2 adjective /ɪkˌsperɪˈmentl/

experimental

实验的
Meaning
based on untested ideas or techniques; relating to experiments or testing
Example
The scientists developed an experimental drug to treat cancer.
科学家们开发了一种实验性药物来治疗癌症。
B2 adjective ˈeθ.ɪ.kəl

ethical

伦理的
Meaning
Relating to moral principles or the branch of knowledge dealing with these.
Example
Ethical considerations guide decisions.
伦理考虑引导决策。
B2 verb /ɪˈvoʊk/

evoke

唤起
Meaning
to bring a feeling, memory, or image into the mind
Example
The old song evoked memories of her childhood.
那首老歌唤起了她童年的回忆。
B2 adjective /ɪkˈstɪr.i.ər/

Exterior

外部的；外表的；外部表面
Meaning
relating to the outside part or surface of something; outer
Example
The exterior of the building was painted in bright colors.
这座建筑的外观被涂上了鲜艳的颜色。
B2 noun /ˌɛvəˈluːʃən/

evolution

进化
Meaning
the gradual development of something, especially from a simple to a more complex form
Example
The theory of evolution explains how species change over time.
进化论解释了物种如何随着时间变化。
B2 adverb /ɪˈməʊʃənəli/

emotionally

情感上
Meaning
in a way that relates to a person's feelings or emotions
Example
She became emotionally attached to her pet.
她变得情感上依赖她的宠物。
B2 adjective /ˈɛv.ə.ɡriːn/

evergreen

常绿
Meaning
Remaining green and functional throughout the year; not shedding leaves seasonally.
Example
Evergreen trees like pine and fir stay green year-round.
常绿树木如松树和冷杉树全年保持绿色。
B2 noun ˌiːkəˈlɒdʒɪkəl ˈbæləns

ecological balance

生态平衡
Meaning
A state of dynamic equilibrium within a community of organisms.
Example
Maintaining ecological balance is essential for a sustainable planet.
维持生态平衡对可持续的星球至关重要。
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。
B2 noun /ˌɛkspɜːˈtiːz/

expertise

专业知识
Meaning
Expert knowledge or skill in a particular area.
Example
His expertise in graphic design is widely recognized.
他的图形设计专业知识被广泛认可。
B2 verb /ɪkˈsiːd/

exceed

超越
Meaning
to go beyond a limit or expectation
Example
The athlete exceeded everyone's expectations by winning the gold medal.
运动员通过赢得金牌超越了每个人的期望。
B2 verb /ɪˈrʌpt/

erupt

爆发
Meaning
to burst forth suddenly and violently
Example
The volcano erupted after centuries of dormancy.
火山在沉寂了几个世纪后爆发。
B2 noun /ɪnˈdjʊə.rəns/

endurance

耐力
Meaning
The fact or power of enduring an unpleasant or difficult process or situation without giving way.
Example
Running a marathon requires exceptional endurance.
跑马拉松需要非凡的耐力。
B2 verb ˈel.ɪ.veɪt

elevate

提升，抬高，升高到更高的位置或更重要的水平
Meaning
To lift to a higher position; to raise to a more important or impressive level.
Example
Good leadership can elevate team performance.
良好的领导能够提升团队表现。
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 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。
B2 adjective /ɪnˈvaɪrənmənt ˈfrɛndli/

environment-friendly

环保
Meaning
Designed or produced in a way that causes minimal harm to the environment, often using sustainable materials and processes that reduce ecological impact.
Example
Environment-friendly products are designed to reduce ecological damage.
环保产品旨在减少生态损害。
B2 verb /ˈɛskɔrt/

escort

护送
Meaning
to accompany someone; to guide or protect while going somewhere
Example
The guard escorted the visitor to the office.
卫兵护送来访者到办公室。
B2 verb /ɪˈmɪt/

emit

发射
Meaning
to send out something such as light, heat, sound, or gas
Example
The factory emits smoke into the atmosphere.
工厂将烟雾排放到大气中。
B2 noun /ˈek.oʊ/

Echo

回声; 回响
Meaning
a sound that is reflected back; a repetition or imitation
Example
His voice created a clear echo in the empty cathedral.
他的声音在空荡的教堂里产生了清晰的回声。
B2 noun /ˌek.əˈnɒm.ɪk səˌsteɪ.nəˈbɪl.ə.ti/

economic sustainability

经济可持续性
Meaning
The ability of an economy to support a defined level of economic production indefinitely.
Example
Economic sustainability drives long-term growth.
经济可持续性推动长期增长。
B2 adjective ɪkˈsɛsɪv

excessive

过度的
Meaning
More than is necessary, normal, or desirable; immoderate.
Example
Excessive population growth leads to resource depletion.
过度的人口增长导致资源枯竭。
B2 verb /ɪnˈkʌmpəs/

encompass

涵盖
Meaning
To include comprehensively; to surround or encircle.
Example
The project will encompass all aspects of rural development.
该项目将涵盖农村发展的各个方面。
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 /ɪnˈfɔːrsmənt/

enforcement

执法
Meaning
the act of making sure that laws or rules are followed
Example
The police are responsible for law enforcement.
警察负责执法。
B2 noun /ɪkˈspen.dɪ.tʃər/

expenditure

支出
Meaning
The action of spending funds; an amount of money spent.
Example
Managing expenditure is critical for budgeting.
管理支出对于制定预算至关重要。
B2 adverb /ɪˈfɪʃəntli/

efficiently

高效地
Meaning
in a way that achieves maximum productivity with minimum wasted effort or expense
Example
She managed to complete the task efficiently within the deadline.
她在最后期限内高效地完成了任务。
B2 verb /ɪkˈsɛl/

excel

表现突出
Meaning
to be exceptionally good at or proficient in an activity or subject
Example
She always tries to excel in her studies.
她总是尽力在学习中表现突出。
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。
B2 noun ˈekwɪti

equity

股权
Meaning
The value of the shares issued by a company.
Example
Owning equity in a company can yield significant returns.
拥有公司股票可能带来可观的回报。
B2 adjective /ɪkˈstræv.ə.ɡənt/

Extravagant

奢华
Meaning
spending much more than is necessary; wasteful; lacking restraint in spending
Example
His extravagant lifestyle included expensive cars and luxury vacations.
他奢华的生活方式包括昂贵的汽车和奢华的度假。
B2 adjective ɪkˈsplɪsɪt

explicit

明确
Meaning
Stated clearly and in detail, leaving no room for confusion or doubt.
Example
The instructions were explicit, leaving no room for confusion.
这些指令是明确的，没有留下任何混淆的空间。
B2 noun /ˈɜːnɪŋz/

earnings

收入
Meaning
money obtained in return for labor or services
Example
Her monthly earnings are enough to support her family.
她的月收入足以养活她的家人。
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 ˈiːkoʊˌtʊrɪzəm

Eco-tourism

生态旅游
Meaning
A form of tourism involving responsible travel to natural areas that conserves the environment and improves the well-being of local people.
Example
Eco-tourism promotes responsible travel to natural areas.
生态旅游促进了负责任的自然地区旅游。
B2 noun /ˈen.tə.praɪz/

Enterprise

企业，特别是一个大胆或复杂的项目
Meaning
a project or undertaking, especially a bold or complex one
Example
The space exploration enterprise required years of planning and preparation.
太空探索企业需要多年的规划和准备。
B2 adjective /ɪˈtɜː.nəl/

Eternal

永恒的; 无尽的; 不朽的; 永远
Meaning
lasting or existing forever; without end or beginning; everlasting
Example
Their love seemed eternal and unbreakable.
他们的爱似乎永恒且不可打破。
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。
B2 noun /ˌɒn.trə.prəˈnɜːr/

Entrepreneur

组织和经营一个或多个企业的人
Meaning
a person who organizes and operates a business or businesses
Example
The young entrepreneur started her own tech company at age 22.
这位年轻的企业家在22岁时创办了自己的科技公司。
B2 noun /ɪnˌvaɪrənˈmɛntəl ˈmuːvmənt/

environmental movement

环境运动
Meaning
A social or political movement aimed at protecting the environment and promoting sustainable practices through advocacy, education, and policy changes.
Example
The environmental movement focuses on reducing pollution and protecting ecosystems.
环境运动专注于减少污染并保护生态系统。
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 adjective /ˈed.ɪ.bəl/

Edible

可食用的
Meaning
safe to eat; suitable for consumption
Example
Only edible mushrooms should be used in cooking.
仅应使用可食用的蘑菇进行烹饪。
B2 adjective /ˌiːkəˈnɒmɪkl/

economical

经济的
Meaning
Careful in the use of resources; providing good value or efficiency.
Example
Driving a hybrid car is economical in the long run.
驾驶混合动力车在长期来看是经济的。
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。
B2 noun /iˈkɒlədʒɪst/

ecologist

生态学家
Meaning
A scientist who studies the relationships between living organisms and their environment.
Example
The ecologist studied the effects of pollution on the forest ecosystem.
生态学家研究了污染对森林生态系统的影响。
B2 adverb /ˌiːkəˈnɒmɪkli/

economically

经济地
Meaning
in a way that relates to economics or is efficient and not wasteful.
Example
The company is trying to operate more economically this year.
公司今年努力以更经济的方式运营。
B2 verb /ɪnˈlɑːrdʒ/

enlarge

扩大
Meaning
to make something bigger or increase in size
Example
They decided to enlarge their house.
他们决定扩大他们的房子。
B2 verb ɪˈrɛktɪŋ

erecting

建造
Meaning
To build; construct; set up in a vertical position.
Example
The workers were erecting a new building downtown.
工人们正在市中心建设一座新建筑。
B2 adjective ɪkˈstɪŋkt

extinct

灭绝
Meaning
No longer in existence; having died out completely.
Example
Some species are becoming extinct due to overfishing.
一些物种由于过度捕捞而濒临灭绝。
B2 verb, adjective /ɪˈlæbəreɪt/ (verb), /ɪˈlæbərət/ (adjective)

elaborate

详细说明 / 设计复杂的
Meaning
verb: to explain something in detail; adjective: detailed and complicated in design
Example
She asked him to elaborate on his proposal.
她要求他详细说明他的提议。
B2 adjective /ɪkˈstɜːr.nəl/

External

外部的
Meaning
coming from or relating to the outside; not belonging to or originating from within
Example
The company hired external consultants to review their business strategy.
公司聘请了外部顾问来审查他们的商业战略。
B2 adjective /ɪkˈsprɛsɪv/

expressive

表达性
Meaning
Effectively conveying thought or feeling.
Example
Her eyes were so expressive that no words were needed.
她的眼睛如此表达性，以至于不需要任何话语。
B2 noun ɪˈroʊʒən

erosion

侵蚀
Meaning
The gradual destruction or diminishing of something.
Example
Power struggles often lead to the erosion of humanity.
权力斗争往往导致人类的侵蚀。
B2 noun /ˈɛdʒuˌkeɪtər/

educator

教育工作者
Meaning
a person who provides education; a teacher or instructor
Example
She is a dedicated educator who inspires her students every day.
她是一位献身的教育工作者，每天都在激励她的学生。
B2 noun ɪˌlɪm.ɪˈneɪ.ʃən

elimination

消除
Meaning
The complete removal or destruction of something.
Example
The elimination of emissions is a priority.
排放的消除是优先事项。