diction
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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。
C2 verb /dɪsˈkʌmfɪt/

discomfit

使不安
Meaning
to make someone feel uneasy, embarrassed, or confused
Example
The interviewer’s tough questions discomfited the candidate.
面试官的难题让候选人感到不安。
C2 verb /ˈdɛpɪleɪt/

depilate

脱毛
Meaning
to remove hair from the skin, especially by mechanical or chemical means
Example
She decided to depilate her legs before the event.
她决定在活动前脱毛她的腿。
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。
C2 verb /dɪˈkæmp/

decamp

逃跑
Meaning
To depart suddenly or secretly, often to avoid trouble or escape.
Example
The thief decamped before the police arrived.
小偷在警察到达之前就逃走了。
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。
C2 noun /draɪd ˈfɛnjʊˌɡriːk livz/

Dried Fenugreek Leaves

干葫芦巴叶
Meaning
dehydrated leaves of the fenugreek plant used as a herb in cooking
Example
Add dried fenugreek leaves to the curry for extra flavor.
将干葫芦巴叶加入咖喱中，增加额外的风味。
C1 noun /dɪˈspɜːrʒən/

dispersion

分散
Meaning
The action or process of distributing things or people over a wide area.
Example
The dispersion of seeds by the wind helps plants reproduce.
风的种子散布有助于植物繁殖。
B1 verb /dɪˈlɪvər/

deliver

交付
Meaning
to bring or hand over something to the intended recipient
Example
The courier will deliver the package tomorrow.
快递员明天会送包裹。
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。
A1 verb /driːm/

dream

梦想
Meaning
to have thoughts and images in your mind while sleeping; to hope for
Example
I often dream about flying in the sky.
我常常梦想在天空中飞翔。
C2 noun /dɪˈpɔːrtmənt/

deportment

举止
Meaning
A person's behavior or manners, especially in a formal situation.
Example
Her deportment during the ceremony impressed everyone.
她在仪式中的举止给大家留下了深刻印象。
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.
B1 noun /dɪˈpɑː.tʃər/

Departure

出发
Meaning
the action of leaving, especially to start a journey; a deviation from an established course
Example
The departure of the train was delayed by thirty minutes due to technical issues.
由于技术问题，火车的出发推迟了三十分钟。
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。
C1 noun /ˌdɪs.ɪˈluː.ʒən.mənt/

disillusionment

幻灭
Meaning
A feeling of disappointment resulting from the discovery that something is not as good as one believed it to be.
Example
Many people experience disillusionment after unrealistic expectations.
许多人在不切实际的期望后会经历幻灭。
A1 noun /dɔːr/

Door

门
Meaning
a movable barrier used to close an entrance to a building or room
Example
Please close the door when you leave the room.
离开房间时请关上门。
C2 verb /diːˈfrɑːk/

defrock

解除神职
Meaning
to officially remove a priest or minister from their position and authority
Example
The church decided to defrock the priest after the scandal.
教会决定在丑闻发生后解除神父的职务。
C2 adjective /dɪsˈdʒʌŋktɪv/

disjunctive

选择性
Meaning
Serving to separate or divide; expressing a choice between alternatives.
Example
In grammar, 'or' is a disjunctive conjunction.
在语法中，'或' 是一个选择性连词。
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 /dɪnt/

dint

努力，撞击痕迹
Meaning
an impression or hollow made by a blow; force or power
Example
By dint of hard work, he achieved success.
通过努力工作，他取得了成功。
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。
A2 noun /ˈdaʊnˌtaʊn/

downtown

市中心
Meaning
the central part of a city
Example
They spent the afternoon shopping downtown.
他们在市中心购物度过了下午。
C2 noun /dɪˈkæmɪtər/

decameter

十米
Meaning
A metric unit of length equal to ten meters.
Example
The field was measured in decameters for accuracy.
为了准确起见，田地是用十米为单位进行测量的。
B1 adjective /ˈdɪstənt/

Distant

遥远的
Meaning
far away in space or time; remote
Example
We could see a distant mountain on the horizon.
我们可以看到地平线上远处的山。
B2 noun /ˈdɔː.weɪ/

doorway

门口
Meaning
the space where a door opens into a room or building
Example
She stood in the doorway waiting for him to arrive.
她站在门口，等待他的到来。
C2 verb /deɪn/

deign

不屑做某事
Meaning
to do something considered beneath one's dignity
Example
The king did not deign to reply to the commoner.
国王没有屈尊回应平民。
B2 adjective /daɪˈnæm.ɪk/

dynamic

动态
Meaning
Characterized by constant change, activity, or progress.
Example
Life flows in a dynamic stream.
生活在动态的河流中流动。
A2 noun /dɪˈsɪʒ.ən/

Decision

决定
Meaning
a conclusion or resolution reached after consideration; the action of deciding
Example
Making the right decision required careful analysis of all available options.
做出正确的决定需要对所有可用选项进行仔细分析。
B2 adjective /ˈdaʊt.fəl/

Doubtful

怀疑的; 不确定的; 对某事感到不确定
Meaning
uncertain; questionable; feeling uncertain about something
Example
I am doubtful about the success of this project.
我对这个项目的成功表示怀疑。
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。
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, 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 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。
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 verb /dɪˈfeɪs/

deface

毁坏
Meaning
to spoil the surface or appearance of something, especially by writing or drawing on it
Example
The vandals defaced the wall with graffiti.
那些恶棍用涂鸦毁坏了墙面。
C2 adjective /ˌdɪsəˈfɛktɪd/

disaffected

不满的
Meaning
Dissatisfied and rebellious, especially against authority or leadership.
Example
The reforms were introduced to calm the disaffected youth.
改革是为了平息不满的青年。
B1 verb /dɪˈfaɪn/

define

定义
Meaning
to explain the meaning of a word, phrase, or concept clearly
Example
The teacher asked the student to define the word 'democracy'.
老师要求学生定义'民主'一词。
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。
C1 adjective /ˈdaʊn.kæst/

downcast

Meaning
feeling sad, dejected, or with lowered eyes
Example
He looked downcast after hearing the bad news.
C2 noun /dəˈɡerəˌtaɪp/

daguerreotype

古老的照片
Meaning
An early type of photograph produced on a silver or silver-covered copper plate.
Example
The museum displayed a rare daguerreotype of Abraham Lincoln.
博物馆展出了一张亚伯拉罕·林肯的稀有达盖尔类型照片。
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。
C2 verb /dɪˈfreɪ/

defray

支付费用
Meaning
to provide money to pay the costs of something
Example
The grant will help defray the cost of education.
这笔补助将帮助支付教育费用。
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 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。
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 /dɪˈkriː/

Decree

法令
Meaning
an official order issued by a legal authority; a judicial decision or edict
Example
The king issued a decree that all citizens must pay additional taxes.
国王发布了一个法令，要求所有公民支付额外税款。
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。
C2 verb /dɪsˈɡɔːrdʒ/

disgorge

呕吐, 排放
Meaning
to discharge or pour out; to vomit; to give up reluctantly
Example
The broken pipe disgorged water all over the floor.
破损的管道把水排放到整个地板上。
C1 verb /ˈdrɪbəl/

dribble

Meaning
to let liquid flow slowly in drops or to move a ball skillfully with repeated small kicks or bounces
Example
The baby dribbled milk on his shirt.
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。
C1 noun /ˈdɪm.pəl/

Dimple

酒窝
Meaning
a small depression in the flesh, either one that exists permanently or one that forms when smiling
Example
Her charming dimples appeared whenever she smiled at the children.
她迷人的酒窝每次对孩子们微笑时都会出现。
C2 noun /dɪˈsɛmbələr/

dissembler

伪君子
Meaning
a person who conceals their real feelings or intentions; a hypocrite or pretender
Example
The politician was accused of being a dissembler who never revealed his true plans.
那位政治家被指控是一个从不透露自己真实计划的伪君子。
B2 verb dɪˈtɪəriəreɪt

deteriorate

恶化
Meaning
To become progressively worse in quality, condition, or performance; to decline.
Example
Unplanned growth can deteriorate living conditions.
无计划的增长可能会恶化生活条件。
A2 preposition /dɪˈspaɪt/

despite

尽管
Meaning
Without being affected by; in spite of.
Example
He continued his work despite the difficulties.
尽管有困难，他继续工作。
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。
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。
A1 verb /dɪˈsaɪd/

decide

Meaning
To make a choice or judgment about something.
Example
She decided to study abroad after graduation.
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.
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。
B2 noun /diˈoʊ.dər.ənt/

Deodorant

除臭剂
Meaning
a substance that removes or conceals unpleasant smells, especially bodily odors
Example
She applied deodorant before going to the gym to stay fresh during workout.
她在去健身房之前涂了除臭剂，以保持训练时的清新。
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。
C2 noun /dɪˈkrɛpɪˌtjuːd/

decrepitude

衰败
Meaning
the state of being old, weak, and worn out
Example
The once-great empire fell into decrepitude.
曾经伟大的帝国陷入了衰败。
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 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。
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。
C1 noun /ˈdɪɡnɪˌtɛri/

dignitary

重要人物
Meaning
a person considered to be important because of high rank or office
Example
Several foreign dignitaries attended the state banquet.
几位外国重要人物出席了国宴。
A2 verb /dɪˈpend/

depend

依赖
Meaning
to rely on someone or something for support
Example
Children depend on their parents for care.
孩子们依赖他们的父母照顾。
C2 noun /ˌdɪpsəˈmeɪniæk/

dipsomaniac

酒鬼
Meaning
A person with an uncontrollable craving for alcoholic drinks.
Example
The novel portrayed the tragic downfall of a dipsomaniac who lost everything to alcohol.
这本小说描绘了一位酒鬼的悲惨堕落，他因酒精失去了一切。
C2 noun /dɛnˈdrɒlədʒi/

dendrology

Meaning
the scientific study of trees and woody plants
Example
He is studying dendrology at the university.
C2 noun /ˈdɪktəm/

dictum

格言
Meaning
A formal pronouncement, authoritative statement, or maxim.
Example
The judge’s dictum clarified the principle of equality before the law.
法官的格言澄清了法律面前人人平等的原则。
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 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 verb /dɪˈfɔːrm/

deform

变形
Meaning
to change the shape or form of something, especially in a way that makes it ugly or damaged; to distort
Example
The intense heat began to deform the plastic container.
高温开始使塑料容器变形。
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。
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。
A1 noun /ˈdrɪŋkɪŋ/

drinking

喝
Meaning
the act of consuming liquids, especially alcohol
Example
Drinking too much water at once can make you feel bloated.
一次喝太多水可能会让你感到腹胀。
B1 adjective /ˈdiː.teɪld/

detailed

详细
Meaning
Having many details; very thorough.
Example
The report provided a detailed analysis of the situation.
报告提供了对情况的详细分析。
C2 noun /ˈdiːɪst/

deist

自然神论者
Meaning
a person who believes in the existence of a supreme being but rejects organized religion
Example
The philosopher identified himself as a deist.
这位哲学家把自己认定为自然神论者。
C1 verb /dɪˈfeɪm/

defame

诽谤
Meaning
to harm someone's reputation by spreading false information
Example
He was defamed by malicious rumors.
他被恶意谣言诽谤。
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。
B1 noun ˈdɪsɪplɪn

discipline

纪律
Meaning
The practice of training people to obey rules or a code of behavior, using punishment to correct disobedience
Example
Discipline helps maintain focus and productivity.
纪律有助于保持专注和生产力。
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。
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。
A2 noun /ˈdaɪəri/

diary

日记
Meaning
a book in which one keeps a daily record of events and experiences
Example
She wrote about her day in her diary before going to bed.
她在睡觉前在日记中写下了她的一天。
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 noun /ˈdaʊn.fɔːl/

Downfall

衰退; 失败; 毁灭
Meaning
a loss of power, prosperity, or status; the cause of such a loss
Example
His arrogance and pride led to his eventual downfall in business.
他的傲慢和自豪导致了他在生意中的最终失败。
C1 adjective /ˈdɪs.ə.plɪ.ner.i/

Disciplinary

纪律的
Meaning
relating to discipline; intended to correct behavior
Example
The company took disciplinary action against the employee.
公司对员工采取了纪律处分措施。
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。
C1 noun dɪˈskrep.ən.siz

discrepancies

差异
Meaning
Differences between things that should be the same
Example
Discrepancies in regulations delay progress.
规则中的差异延迟了进展。
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 /daɪˈvʌldʒ/

divulge

透露
Meaning
to make known something private, secret, or previously unknown
Example
She refused to divulge the source of her information.
她拒绝透露她信息的来源。
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。
B1 noun /doʊˈneɪ.ʃən/

Donation

捐赠; 贡献
Meaning
something that is given to a charity, especially a sum of money; the act of giving
Example
The generous donation helped the hospital purchase new medical equipment.
慷慨的捐赠帮助医院购买了新的医疗设备。
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。
C2 verb /dɪˈræsɪˌneɪt/

deracinate

彻底铲除
Meaning
To uproot something completely; to displace people from their native environment or culture.
Example
The conflict deracinated many families from their homeland.
冲突让许多家庭从他们的家园中被迁移。
B2 verb /ˈdæzəl/

dazzle

使目眩
Meaning
to impress deeply or blind with brilliance or skill
Example
The magician's tricks dazzled the audience.
魔术师的把戏使观众眼花缭乱。
C2 verb /dɪsˈmɛmbər/

dismember

肢解
Meaning
to cut or tear the limbs from a body; to divide into separate parts
Example
The king ordered his enemies to be dismembered.
国王命令将他的敌人肢解。
B1 verb /dræɡ/

drag

拖
Meaning
to pull something heavy or difficult to move along the ground; to go somewhere unwillingly; to last too long
Example
She had to drag the heavy suitcase up the stairs.
她必须把沉重的行李拖上楼梯。
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 /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。
C1 adjective /dɪˈfɛnsəbəl/

defensible

可防御的 / 合理的
Meaning
Capable of being protected against attack or criticism; justifiable.
Example
Her decision was legally defensible.
她的决定在法律上是可防御的。
B2 noun /ˌdɪs.əˈbɪl.ə.ti/

Disability

残疾
Meaning
a physical or mental condition that limits a person's movements, senses, or activities
Example
Despite his physical disability, he became a successful athlete in wheelchair racing.
尽管他有身体残疾，他还是成为了轮椅赛车的成功运动员。
C1 noun ˌdaɪvɜːsɪfɪˈkeɪʃən

diversification

多样化
Meaning
The practice of spreading investments across various assets or sectors to reduce risk.
Example
Diversification helps to reduce investment risk.
多样化有助于降低投资风险。
A2 verb /dɪsˈkʌvər/

discover

发现
Meaning
to find something for the first time
Example
Scientists discovered a new planet last year.
科学家去年发现了一颗新行星。
C1 noun /ˈdæn.drʌf/

Dandruff

头皮屑
Meaning
small white or grey flakes of dead skin that form on the scalp and fall from the hair
Example
He used a special shampoo to treat his persistent dandruff problem.
他使用了一种特殊的洗发水来治疗他持续的头皮屑问题。
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。
C2 adjective /dɪˈstɛnsəbl̩/

distensible

可伸展的
Meaning
Capable of being stretched or expanded.
Example
The stomach is a distensible organ that can expand after eating.
胃是一个可伸展的器官，在进食后可以膨胀。
B1 adjective ˌdem.əˈkræt.ɪk

democratic

民主的
Meaning
Relating to or supporting democracy or its principles.
Example
Democratic governance ensures equal rights.
民主治理确保平等的权利。
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。
C2 verb /diːˈmoʊbəlaɪz/

demobilize

解散
Meaning
To release from military service or to disband troops.
Example
The government decided to demobilize the army after the war.
政府决定在战争后解散军队。
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。
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 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。
C1 noun /dɪˈfɛkʃən/

defection

叛变
Meaning
The act of abandoning one’s country, cause, or group in favor of another.
Example
The politician’s defection shocked his supporters.
这位政治家的叛变让他的支持者感到震惊。
C1 noun /ˈdaɪnəˌmoʊ/

dynamo

发电机; 一个充满能量和热情的人
Meaning
A machine that generates electricity; a person with great energy and enthusiasm.
Example
She is the real dynamo behind the success of the company.
她是公司成功背后的真正动力源。
B2 noun ˈdɪdʒɪtəl ˈfɔːrmæt

Digital Format

数字格式
Meaning
A format in which information is stored as electronic data.
Example
A digital format family tree can be shared online.
数字格式的家谱可以在线共享。
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。
C2 adjective /dɪˈmjʊər/

demure

矜持
Meaning
reserved, modest, and shy
Example
She gave him a demure smile.
她给了他一个矜持的微笑。
C2 noun /ˌdɪsəˈvaʊəl/

disavowal

否认
Meaning
the denial of any responsibility, connection, or support
Example
The politician issued a firm disavowal of the controversial remarks.
该政治家对有争议的言论发表了强烈的否认。
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。