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一、doubt 用作名词，意为“疑问；疑惑”。without doubt = there is no doubt that ...毫无疑问；in doubt 疑惑，拿不定主意。如：
There is no doubt about it. 此事无可怀疑。 I have no doubt of his ability. 对于他的能力我毫不怀疑。 We are in doubt(about) what to donext. 我们不知道下一步要做什么。 When in doubt about the meaningof a word, consult the dictionary. 当你对一个词的意义没有把握时，就查一下词典。 二、doubt用作动词，意为“怀疑”。 1、用在肯定句中，后接whether或if引导的从句。如： I doubt whether they can swim across the river. 我怀疑他们能否游过河去。 He doubts if she will keep her word. 他不敢肯定她是否会遵守诺言。 We doubt that they can complete the work ahead of time. 我们不相信他们能提前完成这项工作。 I doubt that he will come. 我看他未必会来。 2、用在否定句和疑问句中，后接that从句。如： I don't doubt that he can finish the task on time. 我相信他能按时完成任务。 Do you doubt that she will succeed? 你怀疑她会成功吗？ 来源：网络。本文版权归原创作者所有。若侵联删。 |
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