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TOEFL BNC: 1183 COCA: 1906
doubtnoun [ C or U ]uk/daʊt/ us/daʊt/

B1 (a feeling of) not being certain about something, especially about how good or true it is（尤指对好坏、真实性的）怀疑，疑虑，疑问

I'm having doubts about his ability to do the job.我对他是否能胜任此项工作还有一些疑问。
If there's any doubt about the rocket's engines, we ought to cancel the launch.如果对火箭发动机还存有任何疑虑，我们都应该取消此次发射。
The prosecution has to establish his guilt beyond reasonable doubt (US beyond a reasonable) doubt.此次起诉必须证明他所犯的罪行证据确凿。
This latest scandal has raised doubts about whether he could win the election.最近这宗丑闻让人们对他是否能够赢得大选表示怀疑。
[ + (that) ] I never had any doubt (that) you would win.我从未怀疑你会获胜。
He's the most attractive man in the room, no doubt about that/it.毫无疑问他是这个房间里最有吸引力的男人。
no doubt

C1 used to emphasize that what you are saying is true or likely to happen毫无疑问，毋庸置疑，肯定

We will, no doubt, discuss these issues again at the next meeting.毫无疑问，我们在下次会议上还要讨论这些问题。
No doubt you'll want to unpack and have a rest before dinner.你肯定想在吃晚饭前先把行李收拾好并且休息一下。
cast doubt on sth

C2 to make something seem uncertain对…怀有疑虑，对…表示怀疑

Witnesses have cast doubt on the accused's innocence.证人们对嫌疑人是否清白表示怀疑。
in doubt

B2 If the future or success of someone or something is in doubt, it is unlikely to continue or to be successful.不确定，前途未卜

The future of the stadium is in doubt because of a lack of money.由于缺少资金，该体育馆能否建成还不确定。
without (a) doubt

B2 used to emphasize your opinion毫无疑问

She is without (a) doubt the best student I have ever taught.毫无疑问她是我教过的最优秀的学生。
See also
undoubtedly

More examples

There is little doubt that poor medical treatment hastened her death.

There are doubts about the effectiveness of the new drug in treating the disease.

The government expressed serious doubts about the legitimacy of military action .

It's quite natural to experience a few doubts just before you get married.

I always had some doubt about the scheme but I never expressed it.

doubtverb [ T ]uk/daʊt/ us/daʊt/

B2 to not feel certain or confident about something or to think that something is not probable怀疑；不确定，不肯定

I doubt whether/if I can finish the work on time.我怀疑自己能否按时完成这项工作。
[ + that ] They had begun to doubt that it could be done.他们开始怀疑能否做到。
He may come back tomorrow with the money, but I very much doubt it.也许明天他会把钱带回来，但我对此深表怀疑。
I don't doubt his abilities.我并不怀疑他的能力。
doubt sb/doubt sb's word

C1 to not trust someone or believe what they say不相信，不信任，怀疑（某人／某人的话）

He's never lied to me before, so I have no reason to doubt his word.以前他从未对我说过谎，因此我没有理由怀疑他说的话。

More examples

I doubt whether it'll work.

He gave his word that he would marry her and she had no cause to doubt him.

He'd been behaving so strangely that they began to doubt his sanity.

I only caught a fleeting glimpse of the driver of the getaway car, but I doubt I would recognize her if I saw her again.

No one doubted that the president was a man of the highest integrity.

TOEFL BNC: 1183 COCA: 1906
doubt

noun

ADJECTIVE | VERB + DOUBT | DOUBT + VERB | PREPOSITION | PHRASES ADJECTIVE➤considerable, grave, real, serious, severe相當大的疑惑；重大的疑問▸➤slight略微的疑惑◇Without the slightest doubt this is a remarkable exhibition.毫無疑問，這是一次成功的展覽會。➤gnawing, lingering, nagging, niggling令人痛苦的懷疑；揮之不去的疑惑；煩人的疑惑▸➤growing, increasing越來越大的疑惑▸➤personal, private個人的疑惑◇He made clear his own private doubts about it.他明確表達了他個人對此事的疑慮。➤reasonable合理的顧慮◇We have established beyond all reasonable doubt that the painting was indeed by Rembrandt.我們已經確認，毫無疑問，這幅畫的確是倫勃朗的作品。◇It is almost impossible to prove guilt beyond reasonable doubt. (especially BrE) 確鑿無疑地證明有罪幾乎是不可能的。◇It is almost impossible to prove guilt beyond a reasonable doubt. (especially NAmE) 確鑿無疑地證明有罪幾乎是不可能的。➤religious對宗教的疑問VERB + DOUBT➤raise提出懷疑◇His failure to appear raises serious doubts as to his reliability.他未露面實在使人懷疑他是否可靠。➤entertain, feel, harbour/harbor, have心裏懷疑；感到懷疑；存有疑問◇She still felt the same niggling doubt: was he really telling the truth?她仍然無法消除縈繞心頭的疑慮：他真的說實話了嗎？➤express, voice表達懷疑；吐露疑惑▸➤clear up, dispel, erase, remove, resolve消除懷疑；去除疑慮◇The announcement dispelled any doubts as to the prince's intentions.佈告消除了人們對王子意圖的所有疑慮。➤cast, throw使人懷疑；產生陰影◇Her record of dismissals casts doubt on her ability to hold down a job.她多次被解雇的記錄令人懷疑她是否有能力保住一份工作。➤call sth into, throw sth into對⋯產生懷疑◇The proposed development has been thrown into doubt by the decision.這一決定引發了對擬議中的發展項目的疑慮。➤be open to容易受到懷疑◇Their honesty is open to doubt.他們的誠實備受懷疑。DOUBT + VERB➤appear, arise疑問出現◇Doubts have arisen over the viability of the schedule.對於這一日程安排的可行性，人們產生了懷疑。➤exist疑問存在◇Considerable doubt exists as to the precise origin of this custom.對該風俗的確切起源存在着相當大的疑問。➤persist, remain疑點繼續存在▸➤surround sth疑點籠罩着⋯◇From the start, doubts surrounded her claim to be the missing heiress.她自稱是失踪的女繼承人這件事從一開始就存在很多疑點。PREPOSITION➤beyond doubt, beyond a doubt, beyond all doubt, beyond any doubt確實無疑◇The evidence proves beyond doubt that he is innocent.證據表明，他確實是無辜的。➤in doubt不確定；拿不準◇The arrangements for the event still seemed to be in doubt.這一活動的安排似乎仍然不確定。◇If in doubt, consult your doctor.有疑問的話可以請教醫生。➤without doubt, without a doubt無疑◇She is without a doubt the best player I know.她無疑是我所知道的最佳運動員。➤doubt about, doubt over對⋯的懷疑◇Some committee members still had doubts about the plans.委員會中的一些成員對這些計劃仍然存有疑慮。➤doubt in在⋯方面懷疑◇There is no doubt in my mind that this man is Tom.在我心中，從未懷疑過這個人就是湯姆。PHRASES➤beyond a shadow of (a) doubt, without a shadow of (a) doubt毫無疑問◇This proves without a shadow of doubt that we were right.這毫無疑問地證明我們是對的。➤have your doubts about sth對⋯懷疑◇They say they'll be here on time, but I have my doubts about that.他們說會準時到這兒，但我表示懷疑。➤leave no, little, some, etc. doubt不容置疑；有些令人懷疑◇She leaves no doubt as to her view of Picasso's work.她對畢加索作品的觀點無可置疑。➤there is little doubt (that)毋庸置疑◇There is little doubt the documents are fake.毋庸置疑，這些文件是偽造的。
doubt

verb

ADVERB | PHRASES ADVERB➤highly, seriously, very much高度懷疑；非常懷疑◇I never seriously doubted his story.我從未真正懷疑過他講的自己的故事。➤privately暗自懷疑◇Lee privately doubted the truth of this statement.李暗自懷疑這種說法是否符合事實。PHRASES➤not doubt sth for a moment, second, etc.從未懷疑◇I didn't doubt for a second that she was telling the truth.我從來就沒有懷疑過她講的是不是真話。
TOEFL BNC: 1183 COCA: 1906
doubt noun
⇨ doubt 1 (a feeling of doubt) ⇨ doubt 2 (express doubts) ⇨ no doubt ⇨ probably adv. ⇨ in doubt ⇨ unclear adj. (Its success is not in doubt.) ⇨ in doubt ⇨ unsure adj. (If in doubt, wear black.)doubt verb
⇨ doubt (I doubt it.) ⇨ suspect (I have no reason to doubt him.)doubt1

noun

 a feeling of doubt 疑惑的感觉raise/express doubts about sth 对某事提出／表示疑问doubt ♦︎ question ♦︎ uncertainty ♦︎ confusion ♦︎ a question mark over sth ♦︎ indecisionThese are all words for a feeling that you are not sure about sb/sth. 这些词均表示困惑或疑惑。PATTERNS AND COLLOCATIONS 句型和搭配◆doubt / uncertainty / confusion / a question mark / indecision over sth◆doubt / uncertainty / confusion / indecision about / as to sth◆in doubt / question / uncertainty◆beyond / without doubt / question◆considerable doubt / uncertainty / confusion◆serious doubt / confusion◆slight uncertainty / confusion◆to come into / be open to doubt / question◆to express doubt / uncertainty◆to clear up / dispel doubt / uncertainty / confusion■ doubt [uncountable] the state of not being sure about sth or not believing sth 疑惑；困惑；不确定；不相信◆There is some doubt about the best way to do it.人们对这件事的最佳做法有点疑惑。◆There is no doubt at all that we did the right thing.毫无疑问我们做得对。◆New evidence has cast doubt on the guilt of the man jailed for the crime.新的证据使大家对这个犯罪入狱的男人是否有罪产生了疑问。◆The success of the system is not in doubt.这种制度的成功确定无疑。◆If in doubt, wear black.拿不定主意就穿黑色衣服吧。◆He's made some great movies. There's no doubt about it.他拍了一些很优秀的影片，这一点毫无疑问。◆ (law 法律) The prosecution was able to establish beyond reasonable doubt that the woman had been lying.控方可以确切无疑地证实这个女人一直在撒谎。  see also doubtful ⇨ unlikely 1 , doubtful ⇨ unsure ■ question [uncountable] a lack of certainty about sth that is shared with other people 怀疑；困惑◆Her honesty is beyond question.她的诚实是毋庸置疑的。◆His suitability for the job is open to question.他是否适合这项工作还需要考虑。◆Her version of events was accepted without question.她对事情的陈述被毫无疑问地接受了。◆The incident brought into question the safety of travellers in the region.这次事件引起了人们对该地区的游客安全问题的怀疑。■ uncertainty [uncountable] (rather formal) the state of not being sure about sth 犹豫；迟疑；无把握◆There is considerable uncertainty about the company's future.这家公司的前景相当渺茫。◆He had an air of uncertainty about him.他显出对他将信将疑的神情。 OPP certainty ⇨ faith   see also uncertain ⇨ unsure NOTE 辨析 Doubt or uncertainty? Doubt often refers to an active state of mind that questions sb/sth. * doubt常指对人、事、物有所怀疑的一种积极心态◆Religious doubt is an integral element of faith.怀疑是宗教信仰的一个组成部分。 Uncertainty is less forceful and means a more passive lack of certainty about sth. * uncertainty语义较弱，指一种比较消极的不确定性◆Religious uncertainty is an integral element of faith. ■ confusion [uncountable, countable] a state of uncertainty about what is happening, what you should do or what sth means 不确定；困惑◆There is some confusion about what the correct procedure should be.对于正确程序应该是什么还是有些不明确。◆There was a confusion as to what to do next.不清楚下一步该怎么办。   see also confused ⇨ confused 1 , confusing ⇨ confusing ■ a ˈquestion mark over sth■ a ˈquestion mark against sth

idiom

 (rather informal) used to say that sth is not certain, especially what will happen to sth in the future 对（前景）的疑问；悬在⋯上的问号◆There's still a big question mark hanging over his future with the team.他在队里的前途如何还是个大问号。■ indecision ˌɪndɪˈsɪʒn [uncountable] the state of being unable to decide on sth 无决断力；优柔寡断◆After a moment's indecision, he said yes.犹豫片刻之后，他答应了。◆She went through a period of terrible uncertainty and indecision.她经历过一个极度彷徨和无所适从的阶段。▸ indecisive ˌɪndɪˈsaɪsɪv

adjective

◆a weak and indecisive man软弱而且不果断的人doubt2

noun

 a feeling of doubt 疑惑的感觉raise/express doubts about sth 对某事提出／表示疑问doubt ♦︎ suspicion ♦︎ uncertainty ♦︎ misgiving ♦︎ second thoughts ♦︎ qualm ♦︎ scruple ♦︎ compunctionThese are all words for a feeling that you may not be doing the right thing. 这些词均表示对所做事情正确与否的怀疑或疑问。PATTERNS AND COLLOCATIONS 句型和搭配◆doubts / suspicions / uncertainties / misgivings / second thoughts / qualms / scruples / compunction about sth◆without a doubt / misgivings / a qualm / scruples / compunction◆considerable / great / grave / deep / serious doubts / suspicion / misgivings◆to have doubts / suspicions / misgivings / second thoughts / qualms / scruples◆to have no doubts / suspicions / misgivings / qualms / scruples / compunction◆to feel (no) doubt / qualms / compunction◆to express doubts / suspicions / misgivings◆to raise / arouse / voice doubts / suspicions■ doubt [countable] a feeling of not being sure about sth or not believing sth 怀疑；疑问◆His failure to appear raises serious doubts as to his reliability.他的缺席使人们对他是否可以信赖产生了严重的怀疑。◆Doubts have arisen over the viability of the schedule.人们对该时间表的可行性产生了疑问。◆They say they'll be here on time but I have my doubts about that.他们说会准时到达这里，但我对此存疑。◆I had been aware of a nagging doubt growing in my mind.我知道自己心中正滋生出一种难以消除的怀疑。  see also doubt ⇨ suspect verb ■ suspicion [uncountable, countable] a feeling that sb has done sth wrong, illegal or dishonest, even though you have no proof （对人行为或品德的）怀疑，嫌疑◆He was arrested on suspicion of murder.他因涉嫌谋杀而被捕。◆They drove away slowly to avoid arousing suspicion.他们驾车缓缓离去，以免引起怀疑。◆I have a sneaking suspicion that she's not telling the truth.我暗自怀疑她没有说真话。◆She was reluctant to voice her suspicions.她不愿意吐露自己的怀疑。  see also suspicion ⇨ scepticism , suspect ⇨ suppose , suspicious ⇨ suspicious 1 2 ■ uncertainty [countable] something that you cannot be sure about; a situation that causes you to feel uncertain 拿不准的事；无把握的局面◆All of us are a bit afraid of life's uncertainties and unexpected problems.我们大家对于人生的不可知因素与始料不及的困难都有点害怕。◆She tried to get on with her life amidst the uncertainties of war.在兵荒马乱之中，她设法继续生活下去。 OPP certainty ⇨ certainty   see also uncertain ⇨ unclear ■ misgiving ˌmɪsˈgɪvɪŋ [countable, usually plural, uncountable] (rather formal) feelings of doubt or anxiety about what might happen, or about whether or not sth is the right thing to do 疑虑；顾虑◆I had grave misgivings about making the trip.对于这次旅行我有过极大的顾虑。◆I read the letter with a sense of misgiving.我带着疑虑看了那封信。■ second thoughts

phrase

a change in your opinion after thinking about sth again 又一想，转念一想（改变主意）◆You're not having second thoughts about it, are you?你还没有改变主意，对吗？◆ (BrE) I'll wait here. No, on second thoughts, I'll come with you.我就在这儿等。不，我想想，还是跟你一起走吧。◆ (NAmE) On second thought, I'll come with you.我转念一想，还是跟你一起走。ⓘ Second thoughts is used in the two idioms have ˌsecond ˈthoughts and on ˈsecond thoughts ( on ˈsecond thought in American English). * second thoughts用于have second thoughts和on second thoughts两个习语中（美式英语为on second thought）。■ qualm kwɑːm, kwɔːm [countable, usually plural] an uncomfortable feeling of doubt or worry about whether what you are doing is right （对自己行为的）顾虑，不安◆He had been working very hard so he had no qualms about taking a few days off.他一直辛勤工作，所以休息几天他觉得心安理得。■ scruple ˈskruːpl [countable, usually plural, uncountable] a feeling that makes you reluctant to do sth that you think may be morally wrong （道德上的）顾忌，顾虑◆I overcame my moral scruples.我抛开了道德上的顾虑。◆He had no scruples about spying on her.他肆无忌惮地暗中盯着她。◆She is totally without scruple.她完全无所顾忌。   see also scrupulous ⇨ good adj. 5 , unscrupulous ⇨ corrupt ■ compunction kəmˈpʌŋkʃn [uncountable] (formal) a slight feeling of guilt for sth you have done or might do 内疚；愧疚◆She felt no compunction about leaving her job.她对自己的辞职一点儿也不感到懊悔。ⓘ In American English compunction can also be countable. 在美式英语中compunction亦可作可数名词◆ (NAmE) She has no compunctions about rejecting the plan.她对拒绝那个计划丝毫不后悔。 doubt

verb

doubt ♦︎ question ♦︎ challenge ♦︎ dispute ♦︎ contest ♦︎ queryThese words all mean to have or express uncertainty about sb/sth. 这些词均表示怀疑或无把握。PATTERNS AND COLLOCATIONS 句型和搭配◆to doubt / question / challenge / dispute / query whether...◆to doubt / dispute that...◆to doubt / question / challenge / dispute / contest the validity of sth◆to doubt / question / challenge the wisdom of sb / sth◆to doubt / question / challenge a story◆to doubt / question sb's integrity / motives◆to question / challenge / dispute / contest / query a decision◆to seriously doubt / question / challenge / dispute / contest sth■ doubt [transitive] to feel uncertain about sth; to feel that sth is not true or will probably not happen 怀疑；对⋯无把握；认为⋯未必可能◆There seems no reason to doubt her story.似乎没有理由怀疑她所说的话。◆'Do you think England will win?'－'I doubt it.'“你认为英格兰队会赢吗？”“不一定。”◆I never doubted (that) she would come.我从未怀疑过她会来。◆I doubt if the new one will be any better.我不敢肯定这个新的是否会好一些。   see also doubtful ⇨ unlikely 1 , doubtful ⇨ unsure , undoubted ⇨ undoubted ■ question [transitive] to have or express doubts or suspicions about sth 表示疑问；怀疑◆I just accepted what he told me. I never thought to question it.他说什么我就信什么，从未有过怀疑。◆No one has ever questioned her judgement.对她的判断从没有人表示过怀疑。◆He questioned whether the accident was solely the truck driver's fault.他怀疑是否应把事故责任全归咎于卡车司机一个人。   see also unquestioned ⇨ undoubted , unquestionable ⇨ conclusive ■ challenge ˈtʃæləndʒ [transitive] to express or cause doubts about whether sth is true or legal; to refuse to accept sth 对⋯怀疑；质疑；拒绝接受◆The story was completely untrue and was successfully challenged in court.这种说法纯属捏造，已在法庭上被揭穿。◆This discovery challenges traditional beliefs.这个发现是对传统信念的冲击。◆She does not like anyone challenging her authority.她不喜欢任何人挑战她的权威。   see also unchallenged ⇨ undoubted ■ dispute dɪˈspjuːt [transitive] to express doubts about whether sth is true and valid 质疑；对⋯表示异议（或怀疑）◆These figures have been disputed.有人对这些数字提出了质疑。◆The players disputed the referee's decision.参赛选手对裁判的裁决提出了异议。◆No one is disputing that there is a problem.没有人否认问题的存在。   see also undisputed ⇨ undoubted , indisputable ⇨ conclusive ■ contest kənˈtest [transitive] to formally oppose a decision or statement and try to have it changed （正式地）争辩，提出异议，反对◆Her son contested the will, stating that she was not of sound mind when she signed it.她儿子对遗嘱提出了质疑，说她签字时神志不清。◆The divorce was not contested.这桩离婚案没有人提出异议。   see also uncontested ⇨ undoubted ■ query ˈkwɪəri; NAmE ˈkwɪri [transitive] to express doubts about whether sth is correct or not 怀疑；表示疑虑◆We queried the bill as it seemed far too high.账单上的费用似乎太高了，我们对此表示怀疑。NOTE 辨析 Question or query?These words are very close in meaning, although question is more frequent. Query is often used to express doubts about the details of sth, such as a bill, a report or an expenses claim. Question expresses stronger doubt, including the doubt that sth exists at all. 这两个词含义十分相近，只是question更常用些。query常指对某事细节内容起疑，如账单、报告或费用报销等。question指较强烈的怀疑，包括怀疑某事是否真的存在◆I question the existence of life on other planets.我对其他行星上是否有生物感到怀疑。◆I query the existence of life on other planets.
TOEFL BNC: 1183 COCA: 1906
doubt
Uncertainty and being uncertain: uncertainty, doubt, reservation...
To be uncertain: question, doubt, be in doubt...
To not trust or believe someone or something: disbelieve, distrust, mistrust...
Doubters and uncertain people: sceptic, doubting Thomas, skeptic...

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