Descendant
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B2 noun /dɪˈsen.dənt/

Descendant

后代
Meaning
a person who is descended from a particular ancestor; offspring of a later generation
Example
She discovered that she was a descendant of European royalty through genealogy research.
她通过家谱研究发现，她是欧洲皇室的后代。
C1 adjective /dɪsˈhɑːrtənd/

Disheartened

沮丧
Meaning
discouraged; feeling dejected; losing hope or confidence
Example
She felt disheartened after failing the exam twice.
她在两次未能通过考试后感到沮丧。
C2 adjective /ˈdæpəld/

dappled

斑驳
Meaning
Marked with spots or patches of light and shade or different colors.
Example
The forest floor was dappled with sunlight.
森林的地面被阳光斑驳照亮。
C2 adjective /dɪˈspjuːtəbl/

Disputable

有争议的；可疑的
Meaning
open to debate or argument; questionable
Example
The facts in the case are disputable and need further investigation.
案件中的事实是有争议的，需要进一步调查。
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 verb /drɪp/

drip

滴落
Meaning
to fall or let fall in drops
Example
Water was dripping from the broken pipe.
水从破裂的管道中滴下来。
B1 noun /dɪˈzɜːrts/ (noun: reward or punishment deserved)

deserts

某人应得的，尤其是惩罚或奖励
Meaning
what someone deserves, especially punishment or reward
Example
He finally got his just deserts for cheating in the exam.
他因考试作弊终于得到了应得的惩罚。
C1 verb /dɪˈsɛm.ɪ.neɪt/

disseminate

传播
Meaning
To spread or give out something, especially news, information, ideas, etc., to a lot of people.
Example
Social media helps to disseminate information quickly.
社交媒体帮助迅速传播信息。
C2 noun /dɪˌlæpɪˈdeɪʃən/

dilapidation

破败
Meaning
The state of disrepair or ruin as a result of neglect.
Example
The old temple was in a state of dilapidation.
这座古老的寺庙处于破败状态。
B2 adverb dɪˈlɪb.ər.ət.li

deliberately

故意
Meaning
Consciously and intentionally; on purpose.
Example
The actions were deliberately planned to cause harm.
这些行动是故意计划的，以造成伤害。
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.
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。
C2 verb /ˌdɪsəˈbjuːz/

disabuse

使觉醒
Meaning
To free someone from a false belief or misconception.
Example
The teacher tried to disabuse the students of their misunderstanding.
老师试图让学生摆脱他们的误解。
C1 verb /dɪˈdjuːs/

deduce

推断
Meaning
to reach a conclusion by reasoning or inference
Example
From the evidence, the detective deduced that the suspect was lying.
从证据来看，侦探推断出嫌疑人是在撒谎。
A2 noun /ˈdrɑː.mə/

drama

戏剧
Meaning
a play for theater, radio, or television, or an exciting or emotional situation
Example
She loves watching historical drama series.
她喜欢观看历史剧集。
B1 verb /dɪˈleɪ/

delay

延迟
Meaning
to make something happen later than planned
Example
The flight was delayed due to bad weather.
航班因恶劣天气被延误。
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 noun /dɛk/

deck

甲板 / 平台
Meaning
A flat surface or platform, often on a ship or building.
Example
We enjoyed the sunset from the upper deck of the ferry.
我们从渡船的上层甲板上欣赏日落。
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 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 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 /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。
C1 noun /ˈdeɪˌbreɪk/

daybreak

黎明
Meaning
The time in the morning when daylight first appears; dawn.
Example
They set out on their journey at daybreak.
他们在黎明时分开始了他们的旅程。
C2 noun /ˈdaɪɡræf/

digraph

双字母组合
Meaning
A pair of letters representing a single sound, such as 'sh' in 'ship'.
Example
In the word 'phone', the letters 'ph' form a digraph.
'电话'一词中的'ph'字母组成一个双字母组合。
A1 adverb /daʊn/

down

下
Meaning
from a higher to a lower position
Example
He walked down the stairs slowly.
他慢慢地走下楼梯。
B2 adjective /dɪˈskʌr.ɪ.dʒɪŋ/

Discouraging

令人沮丧的
Meaning
making someone feel less confident or enthusiastic about doing something
Example
The coach's discouraging words affected the team's morale.
教练的令人沮丧的话语影响了球队的士气。
C2 noun /ˈdɛvɪlri/

devilry

恶作剧
Meaning
Wicked or cruel behavior; mischievous actions.
Example
The children were full of devilry on Halloween night.
万圣节那天，孩子们充满了恶作剧。
C2 verb /ˈdɔːd(ə)l/

dawdle

拖延
Meaning
to waste time by being slow or idle
Example
Stop dawdling and finish your homework.
停止拖延，完成你的作业。
A2 adjective /ˈdɜː.ti/

Dirty

脏的; 沾有污渍的; 不愉快的; 道德败坏的
Meaning
not clean; covered with dirt; unpleasant; morally corrupt
Example
The kitchen was dirty after cooking.
做饭后厨房是脏的。
C1 adjective /dɪˈsɜːrnəbl/

discernible

明显的
Meaning
able to be seen, recognized, or understood
Example
There was a discernible change in his behavior.
他的行为发生了明显的变化。
C2 verb /ˌdɒmɪˈnɪə/

domineer

支配
Meaning
to assert one's will over another in an arrogant way
Example
He tends to domineer over his younger colleagues.
他倾向于支配年轻的同事。
B2 adverb /ˈdɪmli/

dimly

昏暗
Meaning
in a faint or unclear way; with little light
Example
The room was dimly lit by a single candle.
房间被一根蜡烛微弱地照亮。
C2 verb /dɪsˈkaʊntənəns/

discountenance

反对
Meaning
To disapprove of or discourage something.
Example
The teacher strongly discountenanced cheating in exams.
老师强烈反对考试中的作弊行为。
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。
B2 noun /dɪˈpləʊ.mə/

diploma

文凭
Meaning
an official document showing that a person has completed a course of study or training
Example
She received her diploma after finishing the nursing program.
她在完成护理课程后获得了文凭。
C1 adjective /ˈdɑːsəl/ or /ˈdəʊsaɪl/

docile

顺从的
Meaning
easily managed, taught, or controlled; submissive
Example
The docile puppy quickly learned new tricks.
顺从的小狗很快学会了新把戏。
C2 noun /ˈdɛkəˌpɒd/

decapod

十足目
Meaning
An arthropod with ten limbs, such as crabs, lobsters, and shrimps.
Example
The lobster is a well-known decapod.
龙虾是一种著名的十足目动物。
B2 adjective /dʌm/

Dumb

愚蠢的; 哑的; 傻的
Meaning
unable to speak; silent; lacking intelligence; stupid
Example
She remained dumb during the entire meeting.
她在整个会议中保持沉默。
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 phrase ˌdɪp.ləˈmæt.ɪk rɛz.əˈluː.ʃən

diplomatic resolution

外交解决方案
Meaning
A peaceful solution to conflicts through negotiation and diplomatic channels.
Example
A diplomatic resolution is necessary for peace.
和平需要外交解决方案。
C2 noun/adjective /ˈdɪstæf/

distaff

与女性相关，母系
Meaning
Relating to women or the maternal side of a family; also a tool for spinning thread.
Example
She came from the distaff side of a noble family.
她来自一个贵族家庭的母系。
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。
C2 noun /ˈdʌblɪt/

doublet

双件外套 / 紧身夹克
Meaning
a close-fitting jacket worn by men in the Renaissance; also, a pair of similar things
Example
The actor wore a velvet doublet for the Shakespearean play.
演员为莎士比亚的戏剧穿了一件天鹅绒的达布雷特。
B2 adjective /ˈdæmɪdʒɪŋ/

damaging

Meaning
causing harm or injury
Example
The storm caused damaging effects to the crops.
C2 noun /dɪˈstreɪnər/

distrainor

财产征收人
Meaning
a person, usually a landlord, who seizes another's property for unpaid debt or rent
Example
The distrainor took possession of the tenant's car until the debt was cleared.
财产征收人扣押了租户的车，直到债务清偿。
C1 adjective /ˈdek.stər.əs/

dexterous

灵巧
Meaning
Showing or having skill, especially with the hands; mentally adroit and skillful.
Example
A dexterous programmer can write complex codes effortlessly.
一个灵巧的程序员可以毫不费力地写出复杂的代码。
C2 verb /dɪˈmɜːr/

demur

反对
Meaning
to raise doubts, objections, or show reluctance
Example
She agreed to help without demur.
她同意在没有异议的情况下提供帮助。
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 /dɪˈbeɪs/

debase

贬低
Meaning
to reduce the quality, value, or dignity of something
Example
Corruption can debase the values of a society.
腐败可能贬低社会的价值观。
C2 noun /ˌdɪfəˈrɛnʃə/

differentia

区分特征
Meaning
A distinguishing characteristic that sets one thing apart from another.
Example
The differentia of humans is their ability to reason abstractly.
人类的区分特征是他们的抽象思维能力。
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 /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 adjective /dɪˈpreɪvd/

depraved

堕落的
Meaning
morally corrupt or wicked
Example
The film depicts the life of a depraved criminal.
这部电影描述了一个堕落罪犯的生活。
B2 noun /ˈdɛsɪməl/

decimal

十进制
Meaning
A number system based on 10; a number expressed in the base-10 system.
Example
The number 0.75 is a decimal.
数字0.75是一个十进制数。
B1 noun /ˌdek.əˈreɪ.ʃən/

Decoration

装饰; 装饰品; 奖项;
Meaning
the process or art of decorating something; ornamental items used to beautify
Example
The Christmas decoration transformed the ordinary room into a festive wonderland.
圣诞装饰把普通房间变成了一个节日奇境。
C2 adjective /ˈdɒdərɪŋ/

doddering

颤抖的 / 虚弱的
Meaning
Weak, shaky, or unsteady, especially due to old age.
Example
The doddering professor struggled to climb the stairs.
那位dodering教授艰难地爬上了楼梯。
B2 noun /dɪˈstrækʃənz/

distractions

干扰
Meaning
Things that prevent someone from concentrating on something else.
Example
Eliminate distractions for better productivity.
消除干扰以提高生产力。
C2 adjective /ˌdaɪəˈbɒlɪk/

diabolic

魔鬼的
Meaning
Extremely evil or cruel; characteristic of the devil.
Example
The villain devised a diabolic scheme.
反派设计了一个魔鬼的计划。
C2 noun /dɪsˈkwaɪɪtjuːd/

disquietude

Meaning
A state of uneasiness, anxiety, or restlessness.
Example
His constant pacing showed his inner disquietude.
B2 adjective /dɪˈstɜː.bɪŋ/

disturbing

令人不安
Meaning
causing anxiety, worry, or emotional distress
Example
The news about the accident was deeply disturbing.
关于事故的新闻令人深感不安。
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 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。
C2 verb /dɪˈskraɪ/

descry

远远看到
Meaning
to catch sight of something, especially something distant or obscure
Example
From the hilltop, they descried a small village in the distance.
从山顶上，他们看见了远处的一个小村庄。
C1 verb /dəˈmɛstɪkeɪt/

domesticate

驯化
Meaning
to tame an animal for use by humans; to adapt something for domestic use
Example
Humans domesticated dogs thousands of years ago.
人类几千年前驯化了狗。
C1 adjective dɪˈskrɪmɪnətɔːri

discriminatory

歧视性
Meaning
Making or showing an unfair or prejudicial distinction between different categories of people or things.
Example
Discriminatory policies triggered protests.
歧视性政策引发了抗议。
B1 noun /ˈdɛkeɪd/

decade

十年
Meaning
A period of ten years.
Example
The country has changed a lot in the past decade.
这个国家在过去的十年里发生了很大变化。
C1 noun /dɪˈmiːnər/

demeanor

行为
Meaning
a person's outward behavior or appearance
Example
Her calm demeanor impressed everyone at the meeting.
她的冷静行为给会议上的每个人留下了深刻印象。
A1 adjective ˈdɪfɪkəlt

difficult

困难
Meaning
Needing much effort or skill to accomplish, deal with, or understand; hard.
Example
Managing urban challenges has become increasingly difficult.
管理城市挑战变得越来越困难。
B2 noun/verb /dɪˈspjuːt/

dispute

争议, 争论
Meaning
a disagreement or argument about something important
Example
The two countries are in dispute over the border issue.
两个国家在边界问题上存在争议。
B1 verb/noun /ˈdiːkriːs/ (noun), /dɪˈkriːs/ (verb)

decrease

Meaning
To become or make something smaller or fewer in number, amount, or degree.
Example
The population of the town has decreased over the years.
B1 adverb /ˈdaʊnwədz/

Downwards

向下
Meaning
towards a lower place or position; in a downward direction
Example
The ball rolled downwards along the slope.
球沿坡道向下滚动。
C1 noun /ˌdev.əˈtiː/

Devotee

信徒; 崇拜者
Meaning
a person who is very interested in and enthusiastic about someone or something
Example
As a devotee of classical music, she attended every concert in the city.
作为古典音乐的信徒，她参加了城市中的每一场音乐会。
C1 noun /djʊˈrɛs/

duress

胁迫
Meaning
threats, violence, or pressure used to force someone to do something
Example
She signed the contract under duress.
她在胁迫下签署了合同。
A2 verb /dɪˈskraɪb/

describe

描述
Meaning
to give an account of something in words, including details
Example
She described the scene vividly.
她生动地描述了场景。
B2 verb /dɪsˈtʃɑːrdʒ/

discharge

出院
Meaning
to release or dismiss from duty; to emit or give off
Example
The hospital will discharge the patient tomorrow.
医院明天将出院病人。
C2 adjective /dɪˈlɛktəbl̩/

delectable

美味的
Meaning
delicious or highly enjoyable
Example
The restaurant served a delectable meal.
餐厅提供了一顿美味的饭菜。
C2 adjective /ˌdɛməˈnaɪəkəl/

demoniacal

恶魔般的
Meaning
characteristic of or resembling a demon; wildly evil
Example
He gave a demoniacal laugh that terrified everyone.
他发出了一声恶魔般的笑声，吓坏了所有人。
B2 noun /doʊ/

dough

面团
Meaning
a mixture of flour, water, and other ingredients used to make bread or pastries
Example
She kneaded the dough for ten minutes before baking.
她揉了十分钟面团然后烤了它。
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 /dwel/

dwell

居住
Meaning
to live in a place; to think about something for a long time
Example
They dwell in a small cottage by the lake.
他们住在湖边的一座小屋里。
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。
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.
C1 noun /ˈdæmpər/

damper

某物减少或减弱力量、效果或兴奋
Meaning
something that reduces or lessens the force, effect, or excitement
Example
The cancellation of the trip put a damper on their enthusiasm.
旅行的取消降低了他们的热情。
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。
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 adjective /ˈdaʊn.kæst/

downcast

Meaning
feeling sad, dejected, or with lowered eyes
Example
He looked downcast after hearing the bad news.
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。
A2 noun /dɪʃ/

Dish

盘子
Meaning
a shallow, flat-bottomed container for cooking or serving food; a particular variety or preparation of food served as part of a meal
Example
Please put the rice on the dish before serving.
请在上菜前将米饭放在盘子里。
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。
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。
A2 noun /ˈdɪs.təns/

Distance

距离
Meaning
the length of space between two points; remoteness in place, time, or relationship
Example
The distance between the two cities is approximately three hundred kilometers.
这两座城市之间的距离大约是三百公里。
B1 adjective /dɪsˈeɪbld/

disabled

残疾
Meaning
having a physical or mental condition that limits movements, senses, or activities
Example
The park has special facilities for disabled people.
公园有专为残疾人士设计的设施。
B2 verb/noun /ˌdɪsrɪˈɡɑːrd/

disregard

蔑视
Meaning
To ignore something; lack of consideration or respect for something.
Example
He disregarded the warning signs and kept driving.
他忽视了警告标志并继续开车。
C2 adjective /ˈdɪfɪdənt/

diffident

Meaning
Shy or lacking confidence in one's own abilities.
Example
He was too diffident to ask a question in class.
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。
B1 verb /ˈdoʊneɪt/

donate

捐赠
Meaning
to give money, goods, or time to help others; to contribute
Example
She donates blood every three months.
她每三个月捐一次血。
B1 noun dɪˈskʌvəriz

discoveries

发现
Meaning
The action or process of finding or learning something for the first time; facts or things discovered.
Example
His discoveries revolutionized multiple fields.
他的发现革新了多个领域。
C2 noun /ˌdɪvɪˈneɪʃən/

divination

占卜
Meaning
the practice of seeking knowledge of the future or the unknown by supernatural means
Example
Ancient people often relied on divination to guide important decisions.
古人常常依赖占卜来指导重要的决策。
C1 noun /ˌdɛsɪˈmeɪʃən/

decimation

大规模摧毁
Meaning
The act of destroying or killing a large proportion of something.
Example
The decimation of the city left thousands homeless.
城市的毁灭使成千上万的人无家可归。
C1 noun /ˈdɪsənˌtɛri/

dysentery

肠道疾病（伴有血液和粘液的腹泻）
Meaning
An infection of the intestines resulting in severe diarrhea with blood and mucus.
Example
Many soldiers suffered from dysentery during the war.
许多士兵在战争期间患上了痢疾。
C1 verb /daɪˈluːt/

dilute

稀释
Meaning
To make a liquid thinner or weaker by adding water or another solvent.
Example
You should dilute the juice with water before serving it to children.
你应该在给孩子们提供之前把果汁稀释一下。
C1 noun /dɪˌsem.ɪˈneɪ.ʃən/

dissemination

传播
Meaning
The action or fact of spreading something, especially information, widely.
Example
The dissemination of false information is a major issue.
错误信息的传播是一个严重问题。
A2 adjective/adverb /ˈdeɪli/

daily

每日的
Meaning
happening every day
Example
She reads the newspaper daily.
她每天读报纸。
C2 verb /dɪˈsɪmjʊˌleɪt/

dissimulate

伪装
Meaning
To disguise or conceal one's true feelings or intentions.
Example
He tried to dissimulate his fear with a smile.
他试图用微笑掩饰他的恐惧。
A2 adjective /dɪˈlɪʃəs/

delicious

幸福
Meaning
having a very pleasant taste or smell
Example
The cake was so delicious that everyone asked for a second slice.
当她获得奖项时，她无法掩饰她的快乐。
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。
C2 verb /ˈdɛsɪkeɪt/

desiccate

干燥
Meaning
to dry up completely or remove the moisture from something
Example
The hot sun can quickly desiccate plants in the desert.
炙热的太阳可以迅速把沙漠中的植物弄干。
B2 noun /dɪˈveləpər/

developer

开发者
Meaning
a person or company that creates software, buildings, or land projects
Example
She works as a software developer at a tech company.
她在一家技术公司担任软件开发者。
C1 noun /ˈdaɪhɑːrd/

diehard

Meaning
A person who strongly resists change and remains loyal to a belief or cause.
Example
He is a diehard fan of classic rock music.
C2 noun /drɛɡz/

dregs

残渣
Meaning
the remnants of a liquid left in a container, together with any sediment or grounds; the most worthless part of something
Example
He drank the dregs of the coffee before leaving.
他在离开前喝了咖啡的残渣。
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.
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。
A1 noun /deɪz/

days

天数
Meaning
plural of day; refers to multiple 24-hour periods of time
Example
The project will take at least five days to finish.
这个项目将需要至少五天才能完成。
C1 adjective /ˈdɒdʒi/

Dodgy

可疑的; 值得怀疑的; 不可靠的; 危险的或有风险的
Meaning
suspicious; questionable; unreliable; risky or dangerous
Example
That deal sounds dodgy to me.
这个交易听起来很可疑。
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 adjective /dɪˈfɪʃənt/

Deficient

缺乏的
Meaning
not having enough of a specified quality or ingredient; lacking or inadequate
Example
His diet was deficient in essential vitamins.
他的饮食缺乏必需的维生素。
C2 adjective /daɪˈɒsɪsən/

diocesan

与教区相关
Meaning
relating to a diocese or the district under the supervision of a bishop in the Christian Church
Example
The diocesan council met to discuss church affairs.
教区委员会聚集在一起讨论教会事务。
C1 verb, noun /ˌdɪsɪˈluːʒən/

disillusion

失望
Meaning
to cause someone to realize that something is not as good as they believed
Example
The scandal disillusioned many voters.
丑闻让许多选民失望。
C1 noun /ˈdɒktrɪn/

doctrine

教义
Meaning
A set of beliefs or principles held and taught by a religious, political, or other group.
Example
The church follows a strict doctrine on moral values.
教会遵循一项关于道德价值的严格教义。
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。
C2 noun /ˈdaɪəˌdɛm/

diadem

冕冠
Meaning
A crown or headband worn as a symbol of royalty or authority.
Example
The queen wore a glittering diadem at the coronation.
女王在加冕仪式上戴着闪闪发光的王冠。