1 ADJ-GRADED [usually verb-link ADJ, ADJ wh/that] 不确定的；迟疑的；无把握的 If you are uncertain about something, you do not know what you should do, what is going to happen, or what the truth is about something. 不确定的；迟疑的；无把握的
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He was uncertain about his brother's intentions. [+ about]
他拿不准他哥哥的意图是什么。
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They were uncertain of the total value of the transaction. [+ of]
他们还不确定这笔交易的总价值是多少。
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He stopped, uncertain how to put the question tactfully.
他停顿下来，犹豫着该如何巧妙地提出那个问题。
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With some hesitation and an uncertain smile, she held out her hand.
她犹豫了一下，带着迟疑的微笑把手伸了出去。
SYN unsure, undecided, at a loss, vague
2 ADJ-GRADED [usually verb-link ADJ] 未知的；不明了的；不确定的 If something is uncertain, it is not known or definite. 未知的；不明了的；不确定的
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How far the republics can give practical help, however, is uncertain.
然而，这些共和国究竟能够提供多少切实可行的帮助还未可知。
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It's uncertain whether they will accept the plan.
还不确定他们是否会接受这一方案。
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Students all over the country are facing an uncertain future.
全国各地学生前途未卜。
SYN doubtful, undetermined, unpredictable, insecure
3 PHRASE 明确地；毫不含糊地 If you say that someone tells a person something in no uncertain terms, you are emphasizing that they say it strongly and clearly so that there is no doubt about what they mean. 明确地；毫不含糊地 [emphasis]
| Word Partnership | Use uncertain with: |
| PREP. | uncertain about something 1 |
| VERB. | be uncertain, remain uncertain 1 2 |
| ADV. | highly uncertain, still uncertain 1 2 |
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