dissertation
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C1 noun /ˌdɪsərˈteɪʃən/

dissertation

学位论文
Meaning
A long piece of writing on a particular subject, usually written for a university degree.
Example
She spent two years writing her doctoral dissertation.
她花了两年时间写她的博士论文。
C2 verb /ˈdɛpjʊˌtaɪz/

deputize

任命为副职
Meaning
To appoint someone as a deputy; to act as a substitute or representative.
Example
The sheriff decided to deputize several locals to help maintain order.
治安官决定指派几位当地人以帮助维持秩序。
C2 noun /dɪˈsweɪʒən/

dissuasion

劝阻
Meaning
The act of persuading someone not to take a course of action.
Example
Her dissuasion prevented him from making a bad investment.
她的劝阻阻止了他做一个糟糕的投资。
B1 noun /dɪˈskʌvəri/

discovery

发现
Meaning
The act of finding or learning something for the first time.
Example
The discovery of penicillin changed medical history.
青霉素的发现改变了医学历史。
C2 noun /ˈdɒkɪt/

docket

清单
Meaning
a list or schedule of cases to be tried in a court or items to be done
Example
The judge reviewed the docket before starting the session.
法官在开始会议之前审查了清单。
C1 noun /ˌdɪsəˈbiːdiəns/

disobedience

不服从
Meaning
failure or refusal to obey rules, laws, or authority
Example
The child's disobedience worried his parents.
孩子的不服从让父母感到担忧。
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 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。
C1 noun /dɜːrθ/

dearth

匮乏
Meaning
A scarcity or lack of something.
Example
There was a dearth of food during the famine.
在饥荒期间，食物短缺。
C1 noun /ˌdep.rɪˈveɪ.ʃən/

deprivation

剥夺，缺乏，匮乏
Meaning
The damaging lack of material benefits considered to be basic necessities in a society.
Example
Sleep deprivation affects cognitive function.
睡眠不足影响认知功能。
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。
C2 adjective /ˈdoʊlfəl/

Doleful

悲伤的; 忧郁的;
Meaning
sorrowful; mournful; expressing grief or sadness
Example
She gave him a doleful look when he left.
当他离开时，她给了他一个悲伤的眼神。
C2 noun /ˈdɛvɪltrɪ/

deviltry

恶魔的诡计
Meaning
Cruel or malicious behavior; mischief with an evil aspect.
Example
The villain’s deviltry terrified the townsfolk.
恶棍的恶作剧吓坏了镇上的人。
B2 verb /dɪˈstɪŋɡwɪʃ/

distinguish

区分
Meaning
to recognize or show the differences between two or more things; to set apart as different
Example
It can be difficult to distinguish between truth and rumor.
区分真相和谣言可能很困难。
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。
C1 adjective /dɪˈvɔɪd/

devoid

空虚
Meaning
Completely lacking or without something.
Example
His speech was devoid of any real emotion.
他的演讲完全缺乏任何真实的情感。
C2 noun /draɪ ɡuːs ˈbɛri/

Dry goose berry

干胺果
Meaning
dehydrated amla fruit, rich in vitamin C and used for medicinal and culinary purposes
Example
Dry goose berry powder is excellent for hair growth.
干胺果粉末对头发生长有很好的促进作用。
A2 noun /ˈdrɔːər/

drawer

抽屉
Meaning
a box-shaped storage compartment that slides in and out of furniture
Example
She kept her jewelry in the top drawer of the dresser.
她把珠宝放在梳妆台的上层抽屉里。
C1 verb /dɪˈfrɔːd/

defraud

欺诈
Meaning
to illegally take money or valuables from someone by deception
Example
The company was accused of trying to defraud investors.
公司被指控试图欺骗投资者。
B1 noun /dɪˈstrʌk.ʃən/

Destruction

破坏; 毁灭;
Meaning
the action or process of causing damage to something so that it no longer exists
Example
The earthquake caused widespread destruction throughout the entire city.
地震在整个城市造成了广泛的破坏。
B2 verb /dɪsˈkloʊz/

disclose

披露
Meaning
to reveal or make information known; to expose
Example
The company must disclose all financial information.
公司必须披露所有的财务信息。
C1 adjective /ˌdɪktəˈtɔːriəl/

dictatorial

独裁的
Meaning
Having or showing a tendency to tell people what to do in an autocratic way.
Example
His dictatorial style made him unpopular among colleagues.
他的独裁风格使他在同事中不受欢迎。
C1 verb /daɪˈvɜːrdʒ/

diverge

分歧
Meaning
to separate and go in different directions; to differ
Example
The two paths diverge at the fork in the road.
这两条路在路口分开。
C1 noun ˈdɪskɔrd

discord

不和
Meaning
Disagreement or conflict between people or ideas.
Example
Discord among people disrupts societal stability.
人们之间的不和破坏了社会的稳定。
C1 noun ˌdɛməˈɡræfɪk trænˈzɪʃən

demographic transition

人口过渡
Meaning
A shift in population patterns from high birth and death rates to low birth and death rates as a country develops economically
Example
The demographic transition indicates a shift towards an aging society.
人口过渡表示向老龄化社会的转变。
C1 adjective dɒɡˈmæt.ɪk

dogmatic

教条的
Meaning
Being inclined to lay down principles as incontrovertibly true; characterized by arrogant assertion of unproven principles.
Example
His dogmatic approach to politics made discussions difficult.
他的教条的政治观点让讨论变得困难。
B1 noun /dɪˈsɪʒənˌmeɪkɪŋ/

decision-making

决策制定
Meaning
the process of making decisions, especially important or business-related decisions
Example
The CEO's decision-making was crucial for the success of the company.
CEO的决策制定对公司成功至关重要。
C2 noun /ˌdaɪvəˈɡeɪʃən/

divagation

偏离
Meaning
digression; wandering from a path or subject
Example
His lecture was full of divagation, making it hard to follow the main point.
他的演讲充满了偏离主题的内容，使得很难跟上主要论点。
B2 noun /ˈdrʌm.stɪk/

Drumstick

莫林加荚
Meaning
long green pod vegetable from moringa tree; nutritious vegetable used in curries
Example
The drumstick adds a unique flavor to the traditional fish curry.
鼓槌为传统鱼咖喱增添了独特的风味。
C1 verb /dɪˈteɪn/

detain

Meaning
to keep someone from proceeding; to hold back, especially by official authority
Example
The police detained the suspect for questioning.
C1 adjective /ˈdɔːr.mənt/

Dormant

不活跃; 睡着的; 暂时挂起的; 当前不活跃
Meaning
inactive; sleeping; temporarily suspended; not currently active
Example
The volcano has been dormant for over a century.
火山已经休眠了一个多世纪。
C1 verb/adjective /dɪˈdʒɛnəreɪt/

degenerate

堕落
Meaning
To decline or deteriorate in quality, character, or condition; or someone with low moral standards.
Example
The once thriving empire began to degenerate into chaos.
曾经繁荣的帝国开始衰退成混乱。
C1 verb /ˈdɪsləkeɪt/

dislocate

脱臼
Meaning
To disturb the normal position of something, especially a joint in the body.
Example
He dislocated his shoulder while playing football.
他在踢足球时脱臼了肩膀。
C2 adjective /droʊl/

droll

滑稽
Meaning
curious or unusual in a way that provokes dry amusement
Example
He had a droll sense of humor that made everyone laugh.
他有一种滑稽的幽默感，让每个人都笑了。
C1 noun /ˈdɪs.ə.nəns/

dissonance

不和谐
Meaning
Disagreement, lack of harmony, conflict between ideas or beliefs.
Example
The cultural dissonance created misunderstandings.
文化不和谐造成了误解。
B1 adjective /ˈdɛdɪˌkeɪtɪd/

dedicated

专心致志
Meaning
devoted to a cause, task, or purpose
Example
She is a dedicated teacher who goes above and beyond for her students.
她是一位献身的教师，为她的学生竭尽全力。
C2 noun /drɒs/

dross

废料
Meaning
worthless or unwanted material; rubbish or impurities
Example
Most of his early writings were considered dross.
他的大部分早期作品被视为废料。
B2 verb, noun /dɑːrt/

dart

飞镖/迅速奔跑
Meaning
to move suddenly and quickly; a small pointed missile thrown at a target
Example
The cat darted across the street to avoid the car.
猫迅速穿过街道以避开汽车。
C2 noun /ˈdɪfɪdəns/

diffidence

缺乏自信
Meaning
Lack of self-confidence; shyness or modesty.
Example
Her diffidence made it hard for her to speak in public.
她的缺乏自信让她很难在公众面前发言。
C1 adjective /ˌdɪfəˈrɛnʃəl/

differential

差异的
Meaning
Relating to or showing a difference; involving a distinction.
Example
There is a differential treatment between the two groups.
这两个群体之间存在差异待遇。
C1 noun/verb /dɪsˈkwaɪət/

disquiet

Meaning
A feeling of worry or unease; to make someone feel anxious or uneasy.
Example
The strange silence filled the room with disquiet.
B2 noun /ˈdraɪv.weɪ/

driveway

车道
Meaning
a short private road leading from a street to a house or garage
Example
The car was parked in the driveway next to the garden.
车子停在花园旁的车道上。
C2 noun /ˈdɛkəˌɡræm/

decagram

十克
Meaning
A metric unit of mass equal to ten grams.
Example
The package weighed exactly one decagram.
包裹的重量正好是一个十克。
C1 adjective /dɪˈstrɔːt/

distraught

心烦意乱
Meaning
extremely upset and anxious, often to the point of being unable to think clearly
Example
She was distraught after losing her pet.
她在失去宠物后非常心烦意乱。
C2 noun /ˈdjʊərəns/

durance

监禁
Meaning
imprisonment or confinement
Example
The prisoner spent years in durance before his release.
囚犯在被释放之前在监禁中度过了多年。
C1 noun, verb /dɪsˈɑːnər/

dishonor

Meaning
a state of shame or loss of respect; to bring shame upon someone or something
Example
The soldier felt he had brought dishonor to his family.
C1 adjective daɪˈvɜː.dʒənt

divergent

分歧的
Meaning
Tending to be different or develop in different directions
Example
Divergent policies create challenges in collaboration.
分歧的政策在合作中带来了挑战。
C1 adjective /dɪˈklærətɪv/

declarative

陈述的
Meaning
relating to a statement that declares something; in grammar, a sentence that makes a statement
Example
A declarative sentence simply states a fact or opinion.
陈述句只是陈述一个事实或意见。
C1 verb /ˈdɪs.ɪ.peɪt/

dissipate

逐渐消失
Meaning
To disappear or cause to disappear gradually.
Example
The tension in the room slowly dissipated.
房间里的紧张气氛慢慢消失了。
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。
C2 adjective /daɪˈɡrɛsɪv/

digressive

偏离主要话题的倾向
Meaning
Tending to depart from the main subject in speech or writing.
Example
The speaker's digressive style made the lecture difficult to follow.
演讲者的偏离主题的风格使得听讲变得困难。
C1 verb, noun /dɪsˈkrɛdɪt/

discredit

诋毁
Meaning
To harm the reputation of someone or something; loss of respect or credibility.
Example
The scandal discredited the politician in the eyes of the public.
丑闻使这位政治家在公众眼中失去了信誉。
C2 verb /ˌdɪskəmˈpoʊz/

discompose

打乱
Meaning
To disturb the order or calmness of something or someone.
Example
The unexpected question seemed to discompose her.
出乎意料的问题似乎让她不知所措。
C1 adjective /dɪsˈɪntrəstɪd/

disinterested

无私
Meaning
not influenced by personal interest; impartial or neutral
Example
The judge remained disinterested in the case.
法官在案件中保持无私。
A2 adjective /dʌtʃ/

dutch

荷兰的
Meaning
relating to the Netherlands, its people, or their language
Example
She enjoys Dutch paintings from the 17th century.
她喜欢17世纪的荷兰画作。
C2 noun /ˌdɛspəˈrɑːdoʊ/

desperado

Meaning
A bold, reckless, or dangerous person, often a criminal.
Example
The sheriff was determined to capture the desperado who terrorized the town.
B2 noun /ˈdʌklɪŋ/

duckling

Meaning
a young duck
Example
The mother duck led her ducklings to the pond.
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.
C1 noun /ˌdɪstɪˈleɪʃən/

distillation

蒸馏
Meaning
The process of purifying a liquid by heating and cooling; the extraction of the essential meaning.
Example
Distillation is commonly used to produce alcoholic beverages.
蒸馏通常用于生产酒精饮料。
B1 verb /dɪˈpɑːrt/

depart

Meaning
to leave, especially to start a journey
Example
The train will depart at 9 a.m.
C2 noun /ˌdiːnəʊˈteɪʃən/

denotation

指示
Meaning
The literal or primary meaning of a word, in contrast to the feelings or ideas that the word suggests.
Example
The denotation of the word 'rose' is a type of flower.
“玫瑰”这个词的指示是一个花的种类。
B1 noun, verb /ˈdɪskaʊnt/

discount

折扣
Meaning
A reduction in the usual price of something; to reduce the price of something.
Example
The store offered a 20% discount on all electronics.
商店提供了所有电子产品20%的折扣。
C1 noun /djuːn/

dune

沙丘
Meaning
A hill or ridge of sand formed by the wind, usually found in deserts or near beaches.
Example
The children played on the sand dune by the beach.
孩子们在海滩旁的沙丘上玩耍。
B1 noun /dɪˈmænd/

Demand

需求；消费者对商品或服务的需求
Meaning
an urgent request; the desire of consumers for goods or services
Example
The demand for organic food has increased significantly in recent years.
近年来，有机食品的需求显著增加。
C1 noun /ˈdɛməɡɒɡ/

demagogue

民粹主义者
Meaning
A political leader who seeks support by appealing to popular desires and prejudices rather than by using rational argument.
Example
The crowd was swayed by the fiery speeches of the demagogue.
人群受到了民粹主义者激烈演讲的影响。
A2 noun /ˈdæn.sər/

Dancer

舞蹈家
Meaning
a person who performs dance, typically as a profession or art form
Example
The dancer performed gracefully on the stage.
舞蹈家在舞台上优雅地表演。
A1 verb /dɪˈsaɪd/

decide

Meaning
To make a choice or judgment about something.
Example
She decided to study abroad after graduation.
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。
C2 noun /dɪˈtrækʃən/

detraction

贬低
Meaning
The act of belittling or taking away from the value of something.
Example
Her constant detraction of others made her unpopular.
她对他人的不断贬低使她变得不受欢迎。
B2 noun /dɪsˈmeɪ/

Dismay

沮丧; 惊恐
Meaning
concern and distress caused by something unexpected; consternation or alarm
Example
To our dismay, the concert was cancelled due to severe weather conditions.
令我们失望的是，由于恶劣天气，音乐会被取消了。
C1 verb /ˈdaʊn.pleɪ/

downplay

淡化
Meaning
to make something seem less important than it really is
Example
The company tried to downplay the risks of the new product.
公司试图淡化新产品的风险。
A2 noun /dɪˈpɑːrtmənt/

department

部门
Meaning
a division of a large organization such as a government, university, or company
Example
She works in the marketing department.
她在市场部门工作。
B2 adjective dɪˈlɪbəreɪt

deliberate

故意做的
Meaning
Done consciously and intentionally; carefully considered.
Example
His deliberate actions showed great care and thoughtfulness.
他的故意行为表现出极大的关心和深思熟虑。
B1 adverb /ˈdiːp.li/

Deeply

深深地; 强烈地; 深刻地
Meaning
to a great depth; intensely; profoundly
Example
She breathed deeply before making her decision.
她在做决定前深深地吸了一口气。
B2 noun /ˈdiːlər/

dealer

经销商
Meaning
a person or business that buys and sells goods; someone who distributes
Example
The car dealer offered a discount to attract customers.
汽车经销商提供了折扣以吸引客户。
C1 noun dɪˈfleɪʃən

deflation

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

din

噪音
Meaning
a loud, unpleasant, and prolonged noise
Example
The din of traffic outside made it hard to concentrate.
外面交通的噪音让集中注意力变得困难。
C1 verb /dɪsˈhɑːrtn/

dishearten

使灰心
Meaning
to cause someone to lose determination or confidence; to discourage
Example
The constant rejection letters began to dishearten the young writer.
不断的拒绝信开始使年轻的作家感到气馁。
C2 noun /drʌdʒ/

drudge

苦工
Meaning
A person made to do hard, menial, or dull work.
Example
He felt like a drudge, stuck in repetitive tasks all day.
他觉得自己像个苦工，一整天都困在重复的任务中。
C2 noun /ˈdrɪvəl/

drivel

胡言乱语
Meaning
silly or nonsensical talk
Example
The politician’s speech was full of meaningless drivel.
政治家的演讲充满了无意义的胡言乱语。
C2 noun /ˌdaɪəˈlɛktɪk/

dialectic

Meaning
A method of argument or reasoning by dialogue, especially as a means of investigating truth.
Example
The philosopher used dialectic to challenge his students' assumptions.
B1 adjective /ˌdɪs.əˈpɔɪn.tɪd/

Disappointed

失望
Meaning
sad because something has not happened or is not as good as expected
Example
She was disappointed with her exam results.
她对自己的考试结果感到失望。
A1 noun /ˈdɒlər/

dollar

美元
Meaning
The basic monetary unit of the United States and some other countries
Example
I need five dollars to buy this book.
我需要五美元来买这本书。
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。
C2 verb /djuːp/

dupe

欺骗
Meaning
To deceive or trick someone into believing or doing something.
Example
He was duped into buying a fake watch.
他被欺骗购买了一个假表。
C1 noun /ˈdrɪz.əl/

Drizzle

毛毛雨
Meaning
light rain falling in very fine drops; a very light rainfall
Example
The gentle drizzle continued throughout the morning, making everything misty.
温和的毛毛雨持续了整个早晨，使一切都显得有些模糊。
B2 verb /dɪˈfɜːr/

defer

推迟
Meaning
To postpone or delay; to yield to someone else's judgment or opinion.
Example
The meeting was deferred until next week.
会议推迟到下周。
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。
C2 noun /ˌdɛprɪˈdeɪʃən/

depredation

掠夺
Meaning
An act of attacking or plundering; damage caused by such acts.
Example
The villagers feared the depredation of wild animals at night.
村民们害怕夜间野生动物的掠夺。
C1 adjective /ˌdɪsɪnˈdʒɛnjʊəs/

disingenuous

虚伪的
Meaning
not candid or sincere; giving a false appearance of honesty or openness
Example
She gave a disingenuous excuse for missing the meeting.
她给出了一个虚伪的借口来错过会议。
C1 noun /daɪˈvɜː.ʃən/

Diversion

偏离
Meaning
the action of turning something aside from its course; an activity that diverts the mind
Example
The road closure forced a diversion through the countryside for all travelers.
道路封闭迫使所有旅行者通过乡村绕道而行。
C2 noun /doʊˈniː/

donee

受赠人
Meaning
A person who receives a gift or donation.
Example
The scholarship fund’s donee expressed heartfelt gratitude.
奖学金基金的受赠人表达了深深的感激之情。
B2 noun /dɪsˈɔːrdər/

disorder

紊乱
Meaning
A state of confusion or lack of order; also a medical or mental condition.
Example
The protest ended in disorder when the crowd became violent.
抗议活动在群众变得暴力后陷入了混乱。
A2 verb /ˌdɪsəˈpɪər/

disappear

消失
Meaning
to cease to be visible; to vanish
Example
The magician made the rabbit disappear.
魔术师让兔子消失了。
B2 noun /dɪˌtɜː.mɪˈneɪ.ʃən/

determination

决心
Meaning
Firmness of purpose; the quality of being determined; resolve.
Example
His determination to succeed was unwavering.
他为了成功的决心坚定不移。
C2 noun /ˈdəʊ.lər/

dolor

痛苦
Meaning
A state of great sorrow or distress.
Example
The nation was in deep dolor after the tragedy.
国家在悲剧发生后陷入了深深的痛苦。
C2 verb /diːˈpɒpjʊˌleɪt/

depopulate

减少人口
Meaning
To reduce the number of people living in a place.
Example
The war threatened to depopulate the once-thriving town.
战争威胁要使曾经繁荣的城市人口减少。
B2 noun /dɪsˈkʌmfərt/

discomfort

不适
Meaning
A feeling of slight pain, unease, or awkwardness.
Example
She shifted in her chair due to discomfort in her back.
由于背部不适，她在椅子上移动。
A2 noun /dɪˈzaɪnər/

designer

设计师
Meaning
a person who plans and creates the form or structure of something
Example
The fashion designer presented her new collection.
时尚设计师展示了她的新系列。
C1 verb /dɪˈmɔrəˌlaɪz/

demoralize

Meaning
to cause someone to lose confidence or hope
Example
The constant criticism demoralized the young athlete.
C1 noun ˈdɪk.ʃən

diction

发音和词语选择
Meaning
The style of pronunciation and word choice in speaking or writing.
Example
A strong diction enhances communication skills.
强有力的发音增强了沟通技巧。
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。
C2 adjective /ˈdɔːrsəl/

dorsal

背鳍
Meaning
Relating to the back or upper side of an animal or body part.
Example
Sharks have a prominent dorsal fin.
鲨鱼有一个显眼的背鳍。
A1 noun /deɪ/

Day

天; 日
Meaning
a period of twenty-four hours; the time during which there is light
Example
What a beautiful day it is today with clear blue skies!
今天是个美丽的日子，蓝天晴朗！
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。
C1 noun /djuːˈɛt/

duet

二重奏
Meaning
a musical performance by two singers or instrumentalists
Example
They sang a beautiful duet together on stage.
他们在舞台上共同演唱了一首美丽的二重奏。
B2 verb /ˌdɪskəˈnɛkt/

disconnect

Meaning
to detach or separate from a connection or source
Example
Please disconnect the charger from the power outlet.
C2 adjective /dɪˈsɛnʃənt/

dissentient

持不同政见者
Meaning
Expressing or holding opinions that are opposed to the majority or official view.
Example
Only a few dissentient voices were heard during the debate.
在辩论期间，只听到了少数持不同政见者的声音。
C1 noun /diːˈkrɪp.ʃən/

decryption

解密
Meaning
The process of converting encrypted data back into its original form so it can be understood.
Example
Hackers attempted decryption of classified data.
黑客试图解密机密数据。
C2 verb /dɪˈsɛmbəl/

dissemble

假装
Meaning
to conceal one's true motives, feelings, or beliefs; to pretend
Example
He tried to dissemble his anger with a forced smile.
他试图用强颜欢笑来掩饰自己的愤怒。
C2 adjective /dɪˈfjuːzəbl/

diffusible

可扩散的
Meaning
able to spread or be spread through a medium
Example
Oxygen is diffusible through cell membranes.
氧气可以通过细胞膜扩散。
A2 noun /ˈdeɪn.dʒər/

danger

危险
Meaning
The possibility of harm, injury, or loss.
Example
The hikers were in great danger during the storm.
徒步旅行者在暴风雨中处于极大危险中。
A2 adverb /ˈdɪfərəntli/

differently

以不同方式
Meaning
in a way that is not the same as another or as expected
Example
She approached the problem differently than her colleagues.
她以不同的方式解决了这个问题，比她的同事们更有创意。
C1 noun /draɪ ˈtʃɪl.i/

Dry Chilli

干辣椒
Meaning
dried chili peppers used as spice for adding heat to food
Example
The recipe calls for two dry chillies to make it spicy.
这个食谱需要两颗干辣椒让它变辣。
C1 verb /ˌdɪsɪmˈbɑːrk/

disembark

下船/下飞机
Meaning
To leave a ship, aircraft, or other vehicle.
Example
The passengers disembarked from the plane after landing.
乘客在着陆后从飞机上下来。
B1 adjective /dɪˈmændɪŋ/

demanding

苛刻的
Meaning
requiring much effort, skill, or attention; difficult to satisfy
Example
The job is very demanding and requires long hours of work.
这份工作非常苛刻，需要长时间的工作。
B2 verb /dɪsˈeɪbl/

disable

禁用
Meaning
to make something unable to function or operate
Example
The technician disabled the alarm system temporarily.
技术人员暂时禁用了报警系统。
C2 adjective /dɪˈkɔːrəs/

decourous

得体
Meaning
characterized by propriety, good taste, and proper manners
Example
She maintained a decourous silence during the ceremony.
她在仪式上保持了得体的沉默。
C2 verb /dɪsˈbɜːrs/

disburse

分配
Meaning
to pay out money, especially from a fund
Example
The organization will disburse the funds to the affected families.
该组织将把资金分配给受影响的家庭。
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。
A2 noun /ˈdaɪnɪŋ/

dining

用餐
Meaning
the act of eating a meal, especially in a formal setting
Example
We enjoyed fine dining at the new restaurant.
我们在新餐厅享受了美味的用餐。