dissipate
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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。
C1 noun /ˈdrɛsˌmeɪkər/

dressmaker

女裁缝
Meaning
A person who makes or alters women's clothing professionally.
Example
The dressmaker crafted a beautiful gown for the bride.
女裁缝为新娘制作了一件漂亮的礼服。
C1 verb /dɪsˈpleɪs/

displace

取代
Meaning
to force someone or something out of their usual or original position; to replace or substitute
Example
The new technology will displace many traditional manufacturing jobs.
新技术将取代许多传统的制造业工作。
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。
C1 noun /ˌdɛfəˈmeɪʃən/

defamation

诽谤
Meaning
the act of damaging someone's reputation by making false statements
Example
The newspaper was sued for defamation of character.
该报因诽谤被起诉。
C1 noun, adjective /dɪˈrɪvətɪv/

derivative

衍生物
Meaning
Something that is based on another source; in math, a measure of how a function changes.
Example
The film was criticized for being too derivative of earlier works.
这部电影因过于模仿早期作品而受到批评。
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。
C1 adjective /diːˈsɛntrəlaɪzd/

decentralized

去中心化
Meaning
Controlled by several local offices or authorities rather than one single one.
Example
The decentralized system allowed for more control at local levels.
去中心化的系统允许在地方层级进行更多的控制。
C1 noun /ˈdaʊri/

dowry

嫁妆
Meaning
Property or money brought by a bride to her husband at marriage.
Example
The dowry tradition is still followed in some cultures.
一些文化仍然遵循嫁妆的传统。
C1 adjective /dɪˈbeɪst/

debased

贬值的
Meaning
having lost quality, value, or moral character
Example
The debased currency lost the trust of the people.
贬值的货币失去了人们的信任。
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。
C1 noun /ˈdʊr.i.ən/

Durian

榴莲
Meaning
a large spiky tropical fruit known for its strong smell and creamy custard-like flesh
Example
Durian is known as the king of fruits in Southeast Asia despite its pungent odor.
榴莲在东南亚被誉为水果之王，尽管它散发着强烈的气味。
C1 noun /daɪˈsɛkʃən/

dissection

解剖
Meaning
the act of cutting apart or analyzing something in detail, especially a body or structure
Example
The dissection of the specimen revealed important details about its structure.
样本的解剖揭示了关于其结构的重要细节。
C1 verb /ˈdæŋɡəl/

dangle

悬挂
Meaning
to hang loosely or swing freely
Example
The keys dangled from his belt.
钥匙从他的腰带上悬挂。
C1 adjective /dɪˈɡreɪdɪd/

degraded

退化
Meaning
Reduced in quality, dignity, or condition.
Example
The villagers were forced to live in degraded conditions.
村民们被迫在退化的条件下生活。
C1 adjective, noun /ˈdɛrəlɪkt/

derelict

废弃的
Meaning
in poor condition due to neglect or disuse; a homeless or neglected person
Example
The old factory stood derelict for decades.
那座老工厂废弃了几十年。
C1 adjective /dɪˈspɪkəbl/

despicable

卑劣
Meaning
Deserving hatred and contempt; vile or shameful.
Example
His despicable actions shocked the entire community.
他卑劣的行为震惊了整个社区。
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。
C1 noun ˈdɪl.ɪ.dʒəns

diligence

勤奋
Meaning
Careful and persistent work or effort.
Example
Success requires patience and diligence.
成功需要耐心和勤奋。
C1 noun /ˈdeɪtəm/ or /ˈdætəm/

datum

数据
Meaning
a single piece of information; a fact used as a basis for reasoning or calculation
Example
Each datum in the survey was carefully analyzed.
调查中的每一条数据都经过仔细分析。
C1 verb /dɪˈsɛkt/

dissect

Meaning
to cut apart an animal, plant, or other organism to study its internal parts; to analyze something in detail
Example
In biology class, students had to dissect a frog to learn about its anatomy.
C1 noun dɪˌtɪə.ri.əˈreɪ.ʃən

deterioration

恶化
Meaning
The process of becoming progressively worse; decline in quality, condition, or strength.
Example
Poor maintenance leads to material deterioration.
不良维护导致材料恶化。
C1 verb /dɪˈɡreɪd/

degrade

Meaning
To lower in dignity, quality, or value; to treat with disrespect or to deteriorate.
Example
Harsh words can degrade a person's confidence.
C1 noun /dʌsk/

Dusk

黄昏; 傍晚
Meaning
the period of the day when daylight is fading; twilight
Example
They walked along the beach during dusk, watching the sunset.
他们在黄昏时分在海滩上走，观看日落。
C1 adjective /ˈdaʊn.kæst/

downcast

Meaning
feeling sad, dejected, or with lowered eyes
Example
He looked downcast after hearing the bad news.
C1 noun /ˌdɪp.ləˈmæt.ɪk ˈmaɪl.stəʊn/

diplomatic milestone

外交里程碑
Meaning
A significant achievement or important event in diplomatic relations.
Example
Hosting the summit was a diplomatic milestone.
举办峰会是一个外交里程碑。
C1 noun /dɪˈvɪnɪti/

divinity

神性
Meaning
The quality or state of being divine; a deity.
Example
The priest spoke about the divinity of the soul.
神父谈到了灵魂的神性。
C1 verb /dɪˈfaɪl/

defile

亵渎
Meaning
to pollute, corrupt, or make dirty
Example
The river was defiled by industrial waste.
河流被工业废物亵渎了。
C1 adverb /ˈduːli/

Duly

恰当地, 按时
Meaning
in accordance with what is required or appropriate; at the proper time
Example
The documents were duly signed and submitted.
文件已按时恰当地签署并提交。
C1 verb /dɪsˈsætɪsfaɪ/

dissatisfy

使不满
Meaning
to fail to please or meet expectations; to make someone unhappy
Example
The poor service dissatisfies many customers.
糟糕的服务让许多顾客不满意。
C1 noun /dɪˈfaɪəns/

defiance

反抗
Meaning
Open resistance or bold disobedience.
Example
The protest was an act of defiance against injustice.
抗议是反对不公正的反抗行为。
C1 noun /ˈdiːviəns/

deviance

偏差
Meaning
Behavior that differs from accepted social or moral standards.
Example
The book studies deviance in urban youth culture.
这本书研究了城市青少年文化中的偏差。
C1 verb /daʊs/

douse

扑灭 / 倒
Meaning
to pour liquid over; to extinguish a fire or light
Example
Firefighters doused the flames with water.
消防员用水扑灭了火焰。
C1 verb /druːp/

droop

下垂
Meaning
to bend or hang downward; to become weak or tired
Example
The flowers began to droop in the heat.
花朵在热量下开始下垂。
C1 verb /dɛlv/

delve

Meaning
To investigate deeply; to dig into a subject or area.
Example
The researcher delved into ancient manuscripts to find clues.
C1 noun/verb /dɛnt/

dent

凹痕
Meaning
a small hollow mark on the surface of something; to make a small hollow mark
Example
The accident left a dent in the car door.
事故在车门上留下了一个凹痕。
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。
C1 verb /ˌdiː.kəmˈprɛs/

decompress

放松
Meaning
To relax and recover from stress or pressure.
Example
Taking deep breaths helps to decompress after a stressful day.
深呼吸帮助在压力过大的日子后放松。
C1 noun /ˈdɑː.mə.saɪl/

domicile

住所
Meaning
A person's legal residence or permanent home.
Example
He declared Canada as his legal domicile.
他宣布加拿大为他的法定住所。
C1 verb /dɪˈnəʊt/

denote

表示
Meaning
To be a sign of; to indicate or mean something.
Example
A red flag denotes danger.
红旗表示危险。
C1 adjective /dɪˈsɪd.ju.əs/

deciduous

落叶性
Meaning
Referring to trees that shed their leaves seasonally, typically in autumn.
Example
Oak and maple trees are deciduous, shedding leaves in autumn.
橡树和枫树是落叶性树木，在秋天掉落叶子。
C1 noun ˌdiːˌrɛɡ.jʊˈleɪ.ʃən

deregulation

放松管制
Meaning
The removal or reduction of government regulations in an economic sector.
Example
Deregulation has increased competition in the telecommunications sector.
放松管制增加了电信行业的竞争。
C1 adjective dɪ ˈskrɛʃ.ən.er.i

discretionary

酌情
Meaning
Available for use at the discretion of the user; not required or mandatory.
Example
He set aside some discretionary income for travel.
他为旅行留出了一些酌情收入。
C1 adjective ˈdɔːn.tɪŋ

daunting

令人生畏或具有挑战性的
Meaning
Something that seems intimidating or challenging.
Example
The task seemed daunting, but she completed it successfully.
任务看起来令人害怕，但她成功地完成了它。
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。
C1 adjective /dɪsˈrɛpjətəbl̩/

disreputable

声名狼藉
Meaning
having a bad reputation; not considered respectable or trustworthy
Example
The journalist avoided staying in the disreputable part of town.
记者避免住在城市的声名狼藉地区。
C1 noun /ˌdiː.kɒmpəˈzɪʃən/

decomposition

分解
Meaning
the process of decaying or breaking down into simpler parts
Example
The decomposition of leaves enriches the soil.
叶子的分解使土壤更加肥沃。
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 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 verb /dɪsˈbænd/

disband

解散
Meaning
to break up and stop functioning as a group or organization
Example
The club decided to disband after twenty years of activity.
俱乐部在二十年的活动后决定解散。
C1 adjective /ˈdæʃ.ɪŋ/

Dashing

英俊; 魅力; 自信;
Meaning
stylish and confident; lively and energetic; attractive and charming
Example
He looked dashing in his new suit.
他穿上新西装看起来英俊。
C1 noun /dɪˌnɒmɪˈneɪʃən/

denomination

教派, 价值
Meaning
a recognized autonomous branch of the Christian Church; a unit of value or currency
Example
The church belongs to a Protestant denomination.
这座教堂属于一个新教教派。
C1 verb /dɪˈsɛləˌreɪt/

decelerate

减速
Meaning
to reduce speed; to slow down
Example
The car began to decelerate as it approached the traffic light.
汽车接近红绿灯时开始减速。
C1 noun /dɪˈkɔː.rəm/

Decorum

礼仪; 体面; 尊严
Meaning
behavior in keeping with good taste and propriety; dignified and appropriate conduct
Example
The diplomat maintained perfect decorum throughout the heated negotiations.
这位外交官在激烈的谈判中保持了完美的礼仪。
C1 noun /deɪˈbɑː.kəl/

debacle

灾难
Meaning
A sudden and ignominious failure; a fiasco.
Example
The company's poor management led to a financial debacle.
公司的糟糕管理导致了财政灾难。
C1 noun ˈdaɪ.nə.sti

dynasty

王朝
Meaning
A line of hereditary rulers of a country; a succession of people from the same family who play a prominent role in business, politics, or another field.
Example
The Ming dynasty ruled China for centuries.
明朝统治了中国几个世纪。
C1 verb /ˈdræm.ə.taɪz/

dramatize

戏剧化
Meaning
to present a story in a dramatic way, or to exaggerate something
Example
The novel was dramatized into a popular TV series.
这本小说被改编成了一部受欢迎的电视系列剧。
C1 noun /dɪˈmaɪz/

demise

死亡 / 结束
Meaning
Death or end of something, especially the end of an institution or system.
Example
The sudden demise of the company shocked investors.
公司突如其来的倒闭震惊了投资者。
C1 noun /dɪˈfen.dənt/

Defendant

被告
Meaning
an individual, company, or institution sued or accused in a court of law
Example
The defendant pleaded not guilty to all charges brought against him.
被告对所有对他提出的指控表示不认罪。
C1 noun ˌdɪs.æmˌbɪɡ.juˈeɪ.ʃən

disambiguation

消歧义
Meaning
The removal of ambiguity by making something clear and unambiguous.
Example
The AI system applies disambiguation to refine text understanding.
AI系统应用歧义消除来完善文本理解。
C1 adjective /dɪˈfʌŋkt/

defunct

停用，废弃
Meaning
No longer existing, operating, or functioning.
Example
The company became defunct after the financial crisis.
这家公司在金融危机后不再运作。
C1 noun /drɑːft/ (UK), /dræft/ (US)

draught

Meaning
a current of cool air in a room or another confined space; also a portion of liquid, especially beer, served from a barrel or cask
Example
She closed the window to keep out the cold draught.
C1 noun dɪˈspær.ə.ti

disparity

差异
Meaning
A great difference or inequality.
Example
Disparity between countries must be reduced.
国家之间的差异必须减少。
C1 verb /dɪsˈkleɪm/

disclaim

否认
Meaning
to deny responsibility or connection with something
Example
The company disclaimed responsibility for the accident.
公司否认对此事故负责。
C1 verb /dɪsˈmæntəl/

dismantle

拆解
Meaning
to take apart; to remove or destroy the parts of
Example
Workers will dismantle the old bridge next month.
工人们将在下个月拆除旧桥。
C1 noun /dɪˌnʌnsiˈeɪʃən/

denunciation

指控 / 公共谴责
Meaning
the public condemnation or accusation of someone or something
Example
The journalist's article was a strong denunciation of corruption.
记者的文章是对腐败的强烈指控。
C1 verb /dɪˈluːd/

delude

欺骗
Meaning
To mislead someone into believing something that is not true.
Example
He deluded himself into thinking he could win the race without training.
他欺骗自己认为自己可以不训练就赢得比赛。
C1 noun /ˌdɛməˈlɪʃən/

demolition

拆除
Meaning
the act or process of destroying a building or structure
Example
The demolition of the old factory took several weeks.
拆除旧工厂花了好几个星期。
C1 noun /ˈdel.ɪ.kə.si/

Delicacy

美味佳肴; 一种精致或昂贵的食物;
Meaning
fineness of texture or structure; a choice or expensive food; sensitivity in handling
Example
The chef prepared a local delicacy that was famous throughout the region.
厨师准备了一道当地的美味佳肴，这道菜在整个地区都很有名。
C1 verb /ˌdɪsɪnˈɡeɪdʒ/

disengage

脱离
Meaning
To release or detach oneself from something; to withdraw.
Example
He tried to disengage from the heated argument.
他试图从激烈的争论中脱离。
C1 noun/verb /dɪsˈdeɪn/

disdain

Meaning
The feeling that someone or something is unworthy of respect; to regard with contempt.
Example
She looked at the messy room with open disdain.
C1 adjective /ˈdwɪndlɪŋ/

dwindling

减少
Meaning
Gradually reducing in number, size, or strength.
Example
The villagers relied on dwindling water supplies.
村民依赖着逐渐减少的水资源。
C1 adjective /dɪˈskriːt/

discrete

离散的
Meaning
individually separate and distinct
Example
The course is divided into three discrete modules.
该课程被划分为三个离散模块。
C1 noun /ˌdiːˈmer.ɪt/

Demerit

过错; 缺点; 由于过错或违法行为而给出的标记
Meaning
a fault or disadvantage; a mark given for a fault or offense
Example
The student received a demerit for arriving late to class repeatedly.
学生因为多次迟到而得到了一个德梅里特。
C1 verb ˈdwɪn.dl

dwindle

减少
Meaning
To diminish gradually in size, amount, or strength; to become progressively smaller.
Example
His savings dwindled due to unexpected expenses.
由于意外开销，他的储蓄减少了。
C1 noun /ˈdɪsɪdənt/

dissident

异见者
Meaning
A person who opposes official policy, especially that of an authoritarian state.
Example
The dissident was arrested for speaking against the government.
异见者因反对政府而被逮捕。
C1 noun /deɪˈtɒnt/

detente

缓和紧张关系
Meaning
the easing of strained relations, especially between countries
Example
The treaty helped bring about a détente between the two nations.
该条约有助于缓解两个国家之间的紧张关系。
C1 adjective /ˈdraʊ.zi/

Drowsy

困倦的; 疲倦的; 无精打采的
Meaning
feeling sleepy and lethargic; half asleep; tired
Example
I felt drowsy after the heavy meal.
吃完重餐后我感到困倦。
C1 verb diːˈsɛn.sɪ.taɪz

desensitize

脱敏
Meaning
To make someone less sensitive or reactive to something through repeated exposure.
Example
Constant exposure to violence can desensitize people.
持续的暴力暴露可能会使人们麻木。
C1 verb /daɪˈvɛst/

divest

Meaning
to strip away possessions, rights, or assets; to rid oneself of
Example
The company decided to divest its unprofitable division.
C1 noun /dɪˌpriː.ʃiˈeɪ.ʃən/

depreciation

折旧
Meaning
A reduction in the value of an asset with the passage of time, due to wear and tear.
Example
The car's depreciation rate is high after five years.
五年后，汽车的折旧率很高。
C1 verb /dɪsˈlɒdʒ/

dislodge

赶走
Meaning
To remove or force out from a position, especially one that is fixed or hard to move.
Example
The troops dislodged the enemy from the hill.
部队把敌人从山丘上赶了下去。
C1 noun /ˈdjuːplɛks/

duplex

双拼房
Meaning
A house or apartment divided into two separate residences.
Example
They live in a duplex near the city center.
他们住在市中心附近的一座双拼房里。
C1 verb /ˈdɛsɪmeɪt/

decimate

摧毁
Meaning
To destroy or kill a large proportion of something.
Example
The wildfire decimated the forest.
火灾摧毁了森林。
C1 noun ˌdep.əˈzɪʃ.ən

deposition

沉积，沉积物的沉降过程
Meaning
The action of depositing something; the laying down of matter by a natural process.
Example
River deposition leads to the formation of new landmasses.
河流沉积导致新陆地的形成。
C1 noun /ˈded.lɑk/

Dead-lock

死锁; 僵局
Meaning
a situation in which no progress is possible; complete standstill
Example
The negotiations reached a deadlock when neither side would compromise.
谈判陷入僵局，因为没有一方愿意妥协。
C1 noun /dɪˈstɔːrʃən/

distortion

扭曲，错误呈现
Meaning
the action of twisting, changing, or misrepresenting the shape, sound, or truth of something
Example
There was a distortion in the radio signal.
广播信号中存在扭曲。
C1 adjective /dɪˈplɔːrəbl/

deplorable

可鄙的
Meaning
deserving strong condemnation; shockingly bad in quality
Example
The refugees were living in deplorable conditions.
难民们生活在可鄙的条件下。
C1 noun dɪˌlɪb.əˈreɪ.ʃən

deliberation

深思熟虑
Meaning
Long and careful consideration or discussion.
Example
The agreement was finalized after much deliberation.
协议在经过长时间的深思熟虑后最终确定。
C1 noun /dɪˈrɪʒən/

derision

嘲笑
Meaning
Contemptuous ridicule or mockery.
Example
His ideas were greeted with derision by the audience.
他的观点被观众嘲笑了。
C1 adjective /dɪsˈsɪmɪlər/

dissimilar

不同
Meaning
Not alike; different.
Example
Though they are twins, their personalities are dissimilar.
虽然他们是双胞胎，但他们的个性不同。
C1 adjective /dɪˈmɪnjətɪv/

diminutive

极小的
Meaning
extremely or unusually small
Example
Despite his diminutive size, he was a powerful leader.
尽管他的体型极小，他仍然是一个强大的领导者。
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 ˈdɛtrɪ.mənt

detriment

损害，伤害，败坏
Meaning
Harm, damage, impairment.
Example
Smoking is a detriment to health.
吸烟对健康有害。
C1 noun /ˈdɛdlɒk/

deadlock

僵局
Meaning
a situation in which progress is impossible because of disagreement
Example
Negotiations reached a deadlock after neither side agreed to compromise.
谈判在双方都未同意妥协后陷入了僵局。
C1 noun /daɪˈvɜː.dʒəns/

divergence

分歧
Meaning
The process or state of diverging; a difference or deviation between two or more things.
Example
The divergence in their opinions led to a heated debate.
他们的意见分歧导致了激烈的辩论。
C1 noun /ˈdaʊn.pɔːr/

Downpour

大雨; 突如其来的暴雨
Meaning
a heavy fall of rain; a sudden heavy rainfall
Example
The sudden downpour caught everyone off guard and soaked the outdoor event.
突如其来的暴雨让所有人措手不及，淋湿了户外的活动。
C1 noun /ˌdɪspɛnˈseɪʃən/

dispensation

Meaning
An exemption from a rule or usual requirement; a system of order, government, or control.
Example
The school granted him a special dispensation to skip the exam due to illness.
C1 noun ˈdɛf.ər.əns

deference

尊敬
Meaning
Humble submission and respect.
Example
He showed deference to his elderly mentor.
他向他的老年导师表示尊敬。
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 /dɪsˈɒn.ər/

Dishonour

耻辱
Meaning
a state of shame or disgrace; lack of honor or integrity; failure to fulfill obligations
Example
Breaking his promise brought dishonour to his name and family legacy.
打破诺言给他的名字和家族遗产带来了耻辱。
C1 noun /dɪsˈsɜːrvɪs/

disservice

损害
Meaning
A harmful action; something that does damage rather than help.
Example
Spreading false information is a disservice to the community.
传播虚假信息对社区是一种损害。
C1 noun /dɪˈpɑːzətɔːri/

depository

存储所, 储藏室
Meaning
a place where things are stored or deposited, especially financial assets
Example
The national depository safeguards all government bonds.
国家储藏所保护所有政府债券。
C1 noun /ˈdɛspətɪzəm/

despotism

专制主义
Meaning
absolute power exercised in a cruel and oppressive way
Example
The people revolted against the era of despotism.
人民反抗了专制主义的时代。
C1 noun /ˌdɪfəˈrɛnʃɪˈeɪʃən/

differentiation

差异化, 区分
Meaning
The action or process of differentiating or distinguishing between things.
Example
Differentiation from competitors can create a unique market position.
从竞争者中实现差异化可以创建独特的市场地位。
C1 verb /daɪˈleɪt/

dilate

扩展
Meaning
To make wider, larger, or more open.
Example
The doctor used drops to dilate the patient's pupils.
医生用药水来扩张病人的瞳孔。
C1 noun /dɪˈfjuːʒən/

diffusion

Meaning
the spreading of something more widely or the movement of particles from high to low concentration
Example
The diffusion of information on social media is rapid.
C1 adjective /ˈdɛkədənt/

decadent

颓废的, 奢华的
Meaning
Characterized by or reflecting a state of moral or cultural decline; excessively self-indulgent.
Example
The party was filled with decadent luxury and excess.
派对充满了颓废的奢华与过度。
C1 adjective /ˈdjuːtɪfəl/

Dutiful

尽职的；尊敬的；顺从的
Meaning
conscientiously fulfilling one's duty; obedient; respectful
Example
She is a dutiful daughter who always helps her parents.
她是一个尽职的女儿，总是帮助她的父母。
C1 adjective /daɪˈvɜːrsɪfaɪd/

diversified

多样化的
Meaning
Made or having variety in form, nature, or content.
Example
The company adopted a diversified business strategy to reduce risks.
公司采纳了多样化的商业战略来降低风险。
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 noun /dɪˈsiːt/

Deceit

欺骗; 欺诈; 谎言
Meaning
the action or practice of deceiving someone by concealing or misrepresenting the truth
Example
His deceit was discovered when the truth about his qualifications came to light.
当关于他资历的真相浮出水面时，他的欺骗行为被揭露了。
C1 noun /ˌdɪs.əˈreɪ/

disarray

混乱
Meaning
A state of disorganization or untidiness; confusion or disorder.
Example
His desk was in complete disarray.
他的桌子完全处于混乱状态。
C1 verb /dɪsˈkʌlər/

discolor

褪色
Meaning
to change color, especially in a way that spoils the original appearance
Example
The fabric began to discolor after being left in the sun.
织物在阳光下被放置后开始褪色。
C1 adjective /dɪˈmɛntɪd/

demented

精神错乱的 / 不理智的
Meaning
behaving irrationally due to mental illness or extreme excitement
Example
He looked demented after hearing the shocking news.
他在听到令人震惊的消息后看起来像个精神错乱的人。
C1 noun /dɪˈskrep.ən.si/

discrepancy

差异, 不一致, 矛盾
Meaning
A lack of compatibility or similarity between two or more facts.
Example
The audit revealed a discrepancy between the reported earnings and actual income.
审计揭示了报告的收入与实际收入之间的差异。
C1 verb /doʊt/

dote

宠爱
Meaning
to show excessive love or fondness for someone or something
Example
She tends to dote on her grandchildren.
她倾向于宠爱她的孙子孙女。
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 verb /dɪˈtrækt/

detract

Meaning
To reduce or take away the worth or value of something.
Example
His rude behavior will detract from his good reputation.
C1 adjective /dræb/

drab

单调
Meaning
Dull, lacking brightness or interest; monotonous.
Example
The room looked drab with its gray walls and dim lighting.
这个房间因为灰色的墙壁和昏暗的灯光显得很单调。