B2 noun /ˈdʌklɪŋ/

duckling

Meaning

a young duck

Example

The mother duck led her ducklings to the pond.

B2 noun/verb /dræft/

draft

草稿

Meaning

A preliminary version of a piece of writing; to prepare a preliminary version of a document.

Example

She finished the first draft of her novel.

她完成了小说的第一份草稿。

B2 noun /ˈdiːtʊr/

detour

绕行

Meaning

A longer or less direct route taken to avoid something or reach a destination.

Example

We had to take a detour because the main road was closed.

因为主干道封闭，我们不得不绕行。

B2 verb /dɪˈstrækt/

distract

分心

Meaning

to take someone's attention away from what they are doing or focusing on

Example

The loud noise distracted her during the exam.

大声噪音让她在考试中分心。

B2 adjective /dɪˈpɛndəbl/

dependable

可靠的

Meaning

able to be trusted or relied on; consistently reliable

Example

She is a dependable colleague who always meets deadlines.

她是一位可靠的同事，总是按时完成任务。

B2 noun /diːd/

Deed

行为; 壮举; 法律文件;

Meaning

an action that is performed intentionally or consciously; a legal document showing ownership

Example

His heroic deed saved the child from drowning in the river.

他的英雄行为救了孩子免于在河里溺水。

B2 noun /ˈdeb.riː/

debris

碎片

Meaning

Scattered pieces of waste or remains.

Example

Debris in the eyes causes irritation.

眼睛里的碎片会引起刺激。

B2 verb /dɪˈnaʊns/

denounce

谴责

Meaning

To publicly declare something to be wrong, evil, or condemn strongly.

Example

The leader denounced corruption in his speech.

领导人在他的演讲中谴责了腐败。

B2 noun /doʊs/

dose

剂量

Meaning

a measured amount of a medicine or drug taken at one time

Example

The doctor prescribed one dose of the medicine every six hours.

医生每六小时开一次药物的剂量。

B2 noun /ˈdɔːr.mæt/

Door-mat

门垫

Meaning

a mat placed in front of a door for wiping feet

Example

Please wipe your feet on the door-mat before entering the house.

请在进入房子之前在门垫上擦脚。

B2 verb /dɪˈplɔɪ/

deploy

部署

Meaning

to position strategically; to use effectively

Example

The military will deploy troops to the border.

军队将部署部队到边境。

B2 verb /ˌdaɪəɡˈnoʊz/

diagnose

诊断

Meaning

To identify a disease, condition, or problem by examining symptoms.

Example

The doctor diagnosed him with pneumonia.

医生诊断出他患有肺炎。

B2 adjective daɪˈdʒes.tɪv

digestive

消化的

Meaning

Relating to the digestion of food.

Example

Digestive enzymes help break down food.

消化酶帮助分解食物。

B2 adjective /ˈdɛntəl/

dental

牙科的

Meaning

relating to teeth or dentistry

Example

She goes for a dental checkup every six months.

她每六个月进行一次牙科检查。

B2 noun draʊt

drought

干旱

Meaning

A prolonged period of abnormally low rainfall; a shortage of water.

Example

Drought impacts crop growth significantly.

干旱显著影响农作物的生长。

B2 noun ˌdiː.fɒr.ɪˈsteɪ.ʃən

deforestation

森林砍伐

Meaning

The action of clearing a wide area of trees; the permanent destruction of forests in order to make the land available for other uses.

Example

Deforestation accelerates the loss of biodiversity.

森林砍伐加速了生物多样性的丧失。

B2 noun /ˌdɒkjʊmɛnˈteɪʃən/

documentation

文档

Meaning

material that provides official information or evidence

Example

The documentation for the project is available for review.

项目的文档可供审查。

B2 verb /dɪˈspoʊz/

dispose

丢弃

Meaning

To get rid of something, or to arrange or incline towards something.

Example

He disposed of the old furniture responsibly.

他负责任地处理了那些旧家具。

B2 adjective /ˌdɪsədˈvæntɪdʒd/

disadvantaged

贫困

Meaning

Lacking the basic resources or conditions needed for a good standard of living or equal opportunities.

Example

The program provides support to disadvantaged children.

该计划为贫困儿童提供支持。

B2 noun /ˈdef.ə.sɪt/

Deficit

赤字; 不足

Meaning

the amount by which something is too small; a shortfall or lack

Example

The government faced a budget deficit of millions due to increased spending.

由于支出的增加，政府面临着数百万的预算赤字。

B2 noun /dɪˈsɛnt/

descent

下降 / 血统

Meaning

the action of moving downward, falling, or dropping; ancestry or origin

Example

The climbers began their descent from the mountain peak.

登山者从山顶开始下降。

B2 noun /dɪˈstɜː.bəns/

Disturbance

干扰; 打扰; 不安

Meaning

the interruption of a settled and peaceful condition; anxiety or mental uneasiness

Example

The loud music created a disturbance that bothered all the neighbors.

大声的音乐制造了一个干扰，打扰了所有邻居。

B2 adjective /ˈdræs.tɪk/

Drastic

剧烈的; 严重的; 产生强烈或深远影响的

Meaning

extreme; severe; having a strong or far-reaching effect

Example

The company took drastic measures to reduce costs.

公司采取了剧烈的措施来减少成本。

B2 verb /dɒdʒ/

dodge

躲避

Meaning

to move quickly to one side to avoid something; to avoid dealing with something cleverly or dishonestly

Example

The boxer managed to dodge his opponent's punch.

拳击手成功躲开了对手的拳头。

B2 adjective /dɪˈsɛndənt/

descendent

下降的

Meaning

Moving downward; going down or descending.

Example

The river followed a descendent course toward the valley.

河流沿着向下的河道朝着山谷流去。

B2 adjective /dɪˌveləpˈmentl/

developmental

发展性的

Meaning

relating to the process of growth or progress

Example

Early childhood is a crucial developmental stage for learning.

早期儿童是学习的关键发展性阶段。

B2 noun ˌdedɪˈkeɪʃn

dedication

奉献

Meaning

The quality of being dedicated or committed to a task or purpose; devotion.

Example

His dedication laid the foundation of Indian science.

他的奉献为印度科学奠定了基础。

B2 noun /dɪsˈkloʊʒər/

disclosure

披露

Meaning

the action of making something known or public

Example

The disclosure of the company's financial status was delayed.

公司财务状况的披露被延迟了。

B2 noun /diːp siː/

deep sea

深海

Meaning

The deep parts of the sea or ocean, typically beyond the continental shelf.

Example

Many deep-sea creatures produce bioluminescence for survival.

许多深海生物为了生存而产生生物发光。

B2 noun /dɪsˈɡreɪs/

Disgrace

耻辱; 丢脸; 恥辱

Meaning

loss of reputation or respect as the result of a dishonorable action; a shameful situation

Example

His arrest brought disgrace upon his entire family and reputation.

他的逮捕给他的整个家庭和声誉带来了耻辱。

B2 noun dɪˈskrɛʃən

discretion

谨慎

Meaning

The quality of behaving or speaking in such a way as to avoid causing offense or revealing private information.

Example

She handled the situation with great discretion.

她以极大的谨慎处理了这一情况。

B2 adjective /dɪˈfektɪv/

Defective

有缺陷的; 不完整的

Meaning

having faults or defects; imperfect

Example

The defective product was returned to the store.

有缺陷的产品被退还到商店。

B2 noun /dɪsˈɡaɪz/

Disguise

伪装; 掩饰

Meaning

a means of altering one's appearance to conceal one's identity; something that hides the truth

Example

The spy wore an elaborate disguise to avoid being recognized by enemies.

间谍穿着精心设计的伪装，以避免被敌人认出。

B2 verb /ˌdɪsɪnˈfɛkt/

disinfect

消毒

Meaning

to clean something thoroughly to destroy bacteria or viruses

Example

The nurse disinfected the wound before applying a bandage.

护士在敷上绷带之前消毒了伤口。

B2 noun, verb /ˈdeɪ.bjuː/

debut

首演

Meaning

The first public appearance or performance of someone or something.

Example

The young actor made his debut on the big stage.

年轻演员在大舞台上首次亮相。

B2 adjective /dɛns/

dense

密集的

Meaning

Closely compacted in substance; having parts crowded together.

Example

The forest was so dense that little sunlight reached the ground.

森林是如此密集，以至于只有很少的阳光照射到地面。

B2 noun /duːm/

doom

厄运

Meaning

A terrible fate, destruction, or unavoidable bad outcome.

Example

The ancient prophecy foretold the city’s doom.

古老的预言预示了这座城市的厄运。

B2 adjective /dɪˈzɜːrtɪd/

deserted

荒废的

Meaning

Empty of people; abandoned.

Example

The village looked completely deserted after the storm.

暴风雨过后，村庄看起来完全荒废了。

B2 noun /dɪˈstɪŋk.ʃən/

Distinction

优异; 卓越; 荣誉

Meaning

a difference or contrast between similar things; excellence that sets someone apart; honor or recognition

Example

She graduated with distinction, earning the highest honors in her class.

她以优异的成绩毕业，获得了班级最高荣誉。

B2 verb /ˈdɪkteɪt/

dictate

口述

Meaning

to say words aloud for someone to write down; to give orders

Example

The boss dictates letters to his secretary.

老板给他的秘书口述信件。

B2 verb /dʌmp/

dump

草率地丢弃或放下某物

Meaning

to drop or dispose of something carelessly; to end a relationship suddenly

Example

He dumped all the trash into the bin.

他把所有的垃圾都扔进了垃圾桶。

B2 noun /ˈdɪdʒɪt/

digit

Meaning

a numeral from 0 to 9; also a finger or toe

Example

You must enter a four-digit code to unlock the phone.

B2 adjective /dɪˈzæs.trəs/

Disastrous

灾难性的

Meaning

extremely bad or unsuccessful; causing great damage

Example

The hurricane had disastrous effects on the city.

飓风对城市造成了灾难性的影响。

B2 noun /ˈdɛnɪmz/

denims

牛仔布裤

Meaning

pants or clothes made from denim fabric, usually jeans

Example

He wore blue denims with a white shirt.

他穿着蓝色牛仔裤和白衬衫。

B2 noun /ˌdaɪəˈbiːtiːz/

diabetes

幸福

Meaning

a medical condition in which the body cannot properly control the level of sugar in the blood

Example

He was diagnosed with type 2 diabetes last year.

她收到奖项时，无法掩饰自己的幸福。

B2 noun /ˈdjuːəʊ/

duo

二重奏

Meaning

a pair of people or things, especially in music or entertainment

Example

The musical duo performed their latest hit at the concert.

这个音乐二重奏在音乐会上演奏了他们的最新热门曲。

B2 noun /ˈdɪɡ.nə.ti/

Dignity

尊严，尊重，自尊

Meaning

the state of being worthy of honor or respect; composure and self-respect

Example

Despite facing hardships, she maintained her dignity throughout the ordeal.

尽管面临困难，她在整个考验过程中保持了尊严。

B2 adjective /ˈdæmɪdʒɪŋ/

damaging

Meaning

causing harm or injury

Example

The storm caused damaging effects to the crops.

B2 noun /ˌdɛm.əˈɡræf.ɪks/

Demographics

人口统计学

Meaning

Statistical data relating to the population and particular groups within it.

Example

Demographics help in targeted advertising.

人口统计有助于定向广告。

B2 adjective /dɪm/

Dim

昏暗; 光线微弱; 微弱

Meaning

not bright; having little light; faint

Example

The room was dim with only a small candle for light.

房间昏暗，只有一只小蜡烛提供光线。

B2 adjective /dɪˈfensɪv/

Defensive

防御性

Meaning

used or intended to defend or protect; showing a tendency to react in an angry or hurt way when criticized

Example

He became defensive when criticized about his work.

当他因为工作受到批评时，他变得防御性很强。

B2 verb /dreɪn/

drain

Meaning

to cause liquid to flow away from something; to remove liquid

Example

He drained the pasta before adding the sauce.

B2 adjective /ˌdɪp.ləˈmæt.ɪk/

Diplomatic

外交的; 善于处理人际关系

Meaning

relating to diplomacy; tactful; skilled in managing relationships

Example

She gave a diplomatic answer to avoid offending anyone.

她给出了外交的回答，以避免冒犯任何人。

B2 noun /dɪˈvoʊ.ʃən/

Devotion

忠诚; 热情; 奉献

Meaning

love, loyalty, or enthusiasm for a person, activity, or cause

Example

Her devotion to helping others made her a beloved figure in the community.

她对帮助他人的忠诚使她成为社区中的一个受人爱戴的人物。

B2 noun /ˈdɪpləmæt/

diplomat

外交官

Meaning

An official representing a country abroad; a person skilled in dealing with people tactfully.

Example

The diplomat negotiated a peace agreement.

外交官谈判了一个和平协议。

B2 noun /dɪsˈrʌp.ʃən/

disruption

中断

Meaning

Barrier or interruption, sudden disturbance in any process or service.

Example

The road construction caused major disruption in traffic flow.

道路建设导致交通流量的大规模中断。

B2 verb /ˌdɪfəˈrɛnʃieɪt/

differentiate

区分

Meaning

To recognize or make a distinction between things.

Example

It is important to differentiate between fact and opinion.

重要的是区分事实和意见。

B2 noun daɪˈmen.ʃən

dimension

维度

Meaning

An aspect or feature of a situation, problem, or thing; a measurable extent.

Example

Renewable projects add a new dimension to urban planning.

可再生项目为城市规划增添了一个新的维度。

B2 adjective /dɪˈvaɪn/

Divine

神圣的; 天上的; 类似神的; 与上帝或神灵有关

Meaning

heavenly; sacred; godlike; relating to God or a deity

Example

The divine beauty of the sunset took their breath away.

夕阳的神圣美景让他们屏息凝视。

B2 noun /dɪsˈɡʌst/

Disgust

厌恶

Meaning

a feeling of revulsion or strong disapproval aroused by something unpleasant

Example

She expressed her disgust at the politician's corrupt behavior openly.

她公开表达了对政治家腐败行为的厌恶。

B2 noun /drɪl/

drill

钻头

Meaning

a tool or exercise used for making holes or practicing skills

Example

The students took part in a fire drill at school.

学生们参加了学校的火灾演习。

B2 verb /ˌdɪskəˈnɛkt/

disconnect

Meaning

to detach or separate from a connection or source

Example

Please disconnect the charger from the power outlet.

B2 adjective dɪsˈrʌp.tɪv

disruptive

破坏性的, 使不稳定的

Meaning

Causing or tending to cause disruption.

Example

Deforestation has a disruptive effect on wildlife.

森林砍伐对野生动物有破坏性影响。

B2 verb /ˈdɑːrkən/

darken

变暗

Meaning

to make or become dark; to reduce brightness or light

Example

The clouds began to darken the sky before the storm.

暴风雨来临前，乌云开始使天空变暗。

B2 noun /daɪˈmen.ʃənz/

dimensions

维度

Meaning

Aspects or features of a situation, problem, or thing.

Example

New dimensions of space exploration are being uncovered.

太空探索的新维度正在被揭示。

B2 verb /dɪˈpɪkt/

depict

Meaning

to represent or show something in a picture, story, or other art form

Example

The painting depicts a beautiful sunset over the sea.

B2 noun /dɪˈpreʃ.ən/

Depression

抑郁症

Meaning

a mental health condition characterized by persistent sadness; a severe economic downturn

Example

The therapist helped her cope with depression through cognitive behavioral therapy.

治疗师通过认知行为疗法帮助她应对抑郁症。

B2 adjective /ˈdevəsteɪtɪŋ/

devastating

Meaning

causing severe shock, distress, or destruction; extremely damaging or upsetting

Example

The earthquake had a devastating effect on the city.

B2 noun /ˈdʌbəl ˈdekər/

Double decker

双层巴士

Meaning

a bus with two levels or floors for passengers

Example

The red double decker bus is a famous symbol of London.

红色的双层巴士是伦敦的一个著名象征。

B2 noun /ˈdoʊnər/

donor

捐赠者

Meaning

A person who gives something, especially to a charity or cause.

Example

The donor contributed generously to the hospital’s new wing.

捐赠者慷慨地为医院的新翼捐赠了资金。

B2 verb /ˈdɒmɪneɪt/

dominate

主导

Meaning

to have power or control over something or someone

Example

The company dominates the smartphone market.

这家公司主导了智能手机市场。

B2 verb dɪˈtɪrɪəˌreɪts

deteriorates

恶化

Meaning

To become progressively worse; to decline in quality, condition, or strength.

Example

The quality of air deteriorates due to pollution.

因污染，空气质量正在恶化。

B2 verb /dɪsˈmɪs/

dismiss

解雇, 否定

Meaning

to remove someone from a job or position; to decide something is not important

Example

The manager dismissed the employee for being late too often.

经理因为员工经常迟到而解雇了他。

B2 noun /ˈdeɪtəbeɪs/

database

数据库

Meaning

a structured collection of data stored and accessed electronically

Example

The company's customer details are stored in a secure database.

公司的客户信息存储在一个安全的数据库中。

B2 noun /dɪˈnɒmɪˌneɪtər/

denominator

分母

Meaning

the number below the line in a fraction; a common factor in a situation

Example

In the fraction 3/4, the number 4 is the denominator.

在分数3/4中，数字4是分母。

B2 adjective /ˈdæz.lɪŋ/

Dazzling

耀眼的; 令人印象深刻的

Meaning

extremely bright and impressive; brilliant and stunning

Example

The dazzling lights of the city amazed the tourists.

城市的耀眼灯光让游客感到惊讶。

B2 adjective /ˈdred.fəl/

Dreadful

可怕的; 恐怖的; 可憎的

Meaning

extremely bad or unpleasant; causing fear or suffering; terrible

Example

The weather was dreadful during our vacation.

假期期间，天气很可怕。

B2 noun /dɪˈpləʊməsi/

diplomacy

Meaning

The profession, activity, or skill of managing international relations or handling affairs tactfully.

Example

Effective diplomacy helped avoid the conflict.

B2 verb /dɪˈfaɪ/

defy

反抗

Meaning

to openly resist or refuse to obey someone or something; to challenge or dare someone to do something

Example

The protesters continued to defy the government's ban on public gatherings.

抗议者继续挑战政府对公共集会的禁令。

B2 noun /dɪˈsep.ʃən/

Deception

欺骗

Meaning

the action of deceiving someone; the state of being deceived

Example

The magician's deception amazed the audience with seemingly impossible tricks.

魔术师的欺骗让观众对看似不可能的魔法惊讶不已。

B2 adjective /ˈdɒm.ɪ.nənt/

Dominant

主导的; 有影响力的; 最重要的

Meaning

controlling, influencing, or prevailing over others; most important or powerful

Example

The dominant player controlled the entire basketball game.

主导的球员控制了整场篮球比赛。

B2 noun /ˈdel.ɪ.ɡət/

Delegate

代表

Meaning

a person chosen or elected to act for or represent others; representative

Example

Each country sent a delegate to participate in the international conference.

每个国家派遣了一个代表参加国际会议。

B2 verb /daɪˈdʒest/

digest

消化

Meaning

to break down food in the body; to think about and understand

Example

It takes time to digest a heavy meal.

要花时间消化一顿丰盛的饭菜。

B2 noun dɪˈveləpɪŋ ˈriːdʒənz

developing regions

发展中国家

Meaning

Areas or countries that are in the process of economic growth and development

Example

Pollution affects developing regions the most.

污染最严重地影响发展中国家。

B2 noun /dɪˈsper/

Despair

绝望

Meaning

the complete loss or absence of hope; a state of feeling hopeless

Example

After losing his job, he fell into despair and couldn't see any way forward.

失去工作后，他陷入了绝望，无法看到前进的任何路。

B2 verb /dɪˈstɔːrt/

distort

Meaning

to twist or change the shape, appearance, or meaning of something so it is not true or accurate

Example

The mirror distorted her reflection.

B2 adverb /ˈdʌbli/

doubly

双重地

Meaning

in a twofold manner; to twice the degree

Example

She felt doubly fortunate after winning the prize and getting a promotion.

在赢得奖项并获得晋升后，她感到双倍幸运。

B2 noun /ˌdel.ɪˈɡeɪ.ʃən/

delegation

代表团

Meaning

A group of people chosen to represent others in negotiations or discussions.

Example

The delegation presented their country's agenda.

代表团提出了他们国家的议程。

B2 noun /dəˈmeɪn/

domain

领域

Meaning

An area of knowledge, activity, or territory over which control is exercised.

Example

Mathematics is her main domain of expertise.

数学是她主要的专业领域。

B2 noun dɪˈplɔɪmənt

deployment

部署

Meaning

The action of bringing resources into effective action.

Example

The deployment of the new software was completed successfully.

新软件的部署成功完成。

B2 noun /ˌdɪstrɪˈbjuːʃən/

distribution

分配

Meaning

the act of sharing or delivering something to multiple people or places

Example

The company manages the distribution of food supplies to rural areas.

公司管理食品供应的分配到农村地区。

B2 verb /draʊn/

drown

溺水

Meaning

to die or cause to die by being submerged in and inhaling water

Example

He nearly drowned while swimming in the river.

他在河里游泳时差点淹死。

B2 adjective /ˈduː.əl/

Dual

双重的

Meaning

having two parts or consisting of two elements; double

Example

She has dual citizenship of both countries.

她拥有两个国家的双重国籍。

B2 noun /ˈdɛpjʊti/

deputy

代理人

Meaning

A person appointed as a substitute with power to act.

Example

The deputy will lead the meeting in the manager’s absence.

代理人在经理缺席时将主持会议。

B2 verb /dɪˈtɜːr/

deter

Meaning

to discourage someone from doing something by instilling doubt or fear

Example

High fines are meant to deter people from breaking the law.

B2 verb /dɪˈspætʃ/

dispatch

派遣

Meaning

to send off to a destination or for a purpose

Example

The company dispatched aid to the flood victims.

公司向洪水受害者派遣了援助。

B2 noun /ˈdes.tə.ni/

Destiny

命运; 天命; 预定的道路

Meaning

the events that will necessarily happen to someone in the future; fate or predetermined course

Example

She believed that meeting him was her destiny and meant to be.

她相信，遇到他是她的命运，注定要发生。

B2 noun /dæm/

Dam

大坝; 水库;

Meaning

a barrier constructed to hold back water and raise its level; a female parent of an animal

Example

The massive dam provides electricity and controls flooding in the region.

巨大的大坝为该地区提供电力，并控制洪水。

B2 noun /dɪˈtɜːrdʒənt/

detergent

洗涤剂

Meaning

a substance used for cleaning, especially for washing clothes and dishes

Example

She bought a new brand of detergent for laundry.

她为洗衣服买了一个新的洗涤剂品牌。

B2 noun, verb /dɪˈfɔːlt/

default

违约

Meaning

failure to fulfill an obligation, especially to repay a loan

Example

The company defaulted on its loan payments.

公司在贷款支付方面违约。

B2 adjective /dɪˈstɪŋkt/

Distinct

独特的; 独一无二的; 清晰的; 可识别的

Meaning

separate and different; clear and recognizable; unique

Example

Each painting has its own distinct style and character.

每幅画都有自己独特的风格和特点。

B2 adjective /ˈdjʊərəbəl/

Durable

耐用的; 强壮的; 结实的

Meaning

able to withstand wear, pressure, or damage; lasting; strong

Example

This durable fabric will last for many years.

这款耐用面料将持续多年。

B2 adjective /dɪˈzaɪərəbl/

desirable

理想的

Meaning

worth having or wanting; attractive

Example

The location of the house was highly desirable, with great views.

房子的地理位置非常理想，视野极好。

B2 noun /dɒk/

dock

码头

Meaning

a structure where ships are loaded, unloaded, or repaired

Example

The ship stayed at the dock for two days.

船只在码头停留了两天。

B2 verb, noun /dɒn/

don

穿上 / 领袖

Meaning

to put on (an article of clothing); also used as a title for a respected person

Example

She donned her coat before leaving.

她在离开前穿上了外套。

B2 noun /diːp ˈkʌlər/

Deep colour

深色

Meaning

a rich, intense, or dark shade of any color

Example

The artist used deep colours to create a dramatic effect.

艺术家使用深色调来创造戏剧性的效果。

B2 verb /drɪft/

drift

漂移

Meaning

to move slowly, especially by air or water currents

Example

The boat began to drift away from the shore.

船开始从岸边漂移。

B2 verb /dɪˈspaɪz/

despise

鄙视

Meaning

to regard with contempt; to hate strongly

Example

She despises dishonesty in all its forms.

她鄙视所有形式的不诚实。

B2 adjective /dɪˈtætʃt/

detached

分离的, 疏远的

Meaning

separate or disconnected; showing a lack of emotional involvement

Example

He lived in a detached house away from the city.

他住在远离城市的分离房子里。

B2 noun /dɪˈrɛktəri/

dusty

满是灰尘的

Meaning

covered with or full of dust; dry and dull from lack of moisture or use

Example

The old bookshelf was dusty after years of neglect.

多年无人打理后，这个旧书架满是灰尘。

B2 verb /dɪˈsiːv/

deceive

欺骗

Meaning

To cause someone to believe something that is not true.

Example

He tried to deceive his friends with a fake story.

他试图用一个假的故事欺骗他的朋友。

B2 noun /ˌdiː.haɪˈdreɪʃən/

dehydration

脱水

Meaning

A condition in which the body or tissue lacks adequate water content.

Example

Dehydration can lead to fatigue and confusion.

脱水可能导致疲劳和困惑。

B2 noun daɪˈlem.ə

dilemma

困境, 难题

Meaning

A situation in which a difficult choice has to be made between two or more alternatives.

Example

She faced a moral dilemma at work.

她在工作中面临道德困境。

B2 noun /depθ/

Depth

深度; 深沉或深刻的特质

Meaning

the distance from the top or surface to the bottom; the quality of being intense or profound

Example

The depth of the ocean in this area reaches over three thousand meters.

该地区的海洋深度超过三千米。

B2 verb /dɪˈsɛnd/

descend

Meaning

To move or fall downward; to come or go down from a higher place.

Example

The hikers descended the steep mountain path.

B2 verb /dɪsˈkɑːrd/

discard

丢弃

Meaning

to throw away something that is no longer needed

Example

She decided to discard the old clothes.

她决定丢弃旧衣服。

B2 noun ˈdevəsteɪtɪŋ ˈkɒnsɪkwənsɪz

devastating consequences

毁灭性后果

Meaning

Extremely harmful or destructive results or effects

Example

Air pollution has devastating consequences for health.

空气污染对健康有毁灭性后果。

B2 adjective daɪˈvɜːs

diverse

多样的

Meaning

Showing a great deal of variety; very different.

Example

Diverse industries enhance economic resilience.

多样化的产业增强了经济韧性。

B2 noun /ˌdɪsɪnˈfɛktənt/

disinfectant

消毒剂

Meaning

a chemical substance used to kill harmful microorganisms on surfaces

Example

The cleaner sprayed disinfectant on the table.

清洁工在桌子上喷洒了消毒剂。

B2 noun ˈdɒmɪnəns

dominance

主导地位

Meaning

Power and influence over others; control or command.

Example

The dominance of Urdu was evident.

乌尔都语的主导地位显而易见。