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英语
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i don't know whether you happened to have heard or i don't know whether you happened to hear?
上面的两种说法那一个正确?
人气：249 ℃ 时间：2019-11-08 10:41:36
解答
第一种正确,第一种强调听到的结果,我不知道你是否碰巧听说了.这个“了”字是通过have heard来体现的
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