doubt
noun
Definitions of doubt noun
- B1Countable(可數名詞)Uncountable(不可數名詞)
A feeling of uncertainty about something, especially regarding its quality or truth.
（尤指對好壞、真實性等的）懷疑；疑慮；不確定
I have some reservations about whether he is qualified for this position.
我對他是否勝任這個職位有些保留。
If there are any uncertainties regarding the rocket's engine, we should postpone the launch.
如果對火箭引擎有任何不確定性，我們應該推遲發射。
The prosecution must demonstrate his guilt beyond any reasonable doubt.
控方必須證明他的罪行毫無合理懷疑。
Phrases of doubt noun
- no doubt
Used to express certainty about something being true or very likely to happen.
毫無疑問
• No doubt, this new policy will have a significant impact on the company.
毫無疑問，這項新政策將對公司產生重大影響。
- without (a) doubt
Used to emphasize a statement or opinion, indicating certainty.
毫無疑問
• Without a doubt, she is the most talented designer on our team.
毫無疑問，她是我們團隊中最有才華的設計師。
- in doubt
If the future or success of someone or something is in doubt, it suggests that its continuation or success is uncertain.
前景未卜；不確定
• The success of this project is in doubt due to a lack of funding.
由於缺乏資金，這個專案的成功與否尚不確定。
verb
Definitions of doubt verb
- B2Transitive(及物動詞)
To not be certain or confident about something, or to consider something unlikely.
懷疑；不確定；不肯定
I am uncertain if I will be able to complete this task by the deadline.
我不確定是否能在截止日期前完成這項任務。
They began to question whether it was feasible to accomplish.
他們開始懷疑這是否可行。
He might return with the money tomorrow, but I highly doubt it.
他明天可能會帶著錢回來，但我非常懷疑。
Phrases of doubt verb
- doubt someone/doubt someone's word
To not trust or believe someone or what they say.
不相信（某人）；懷疑（某人的話）
• She always tells the truth, so I see no reason to doubt her.
她總是說實話，所以我看不出有任何理由懷疑她。