you have made a terrible mistake?这里为什么用have 直接 you made a terrible mistake 不行么?
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you have made a terrible mistake?这里为什么用have 直接 you made a terrible mistake 不行么?
you have made a terrible mistake?这里为什么用have 直接 you made a terrible mistake 不行么?
you have made a terrible mistake?这里为什么用have 直接 you made a terrible mistake 不行么?
前者是现在完成时结构,强调对现在的影响.后者是一般过去时结构,强调过去.
现在完成时表示对现在造成的影响和结果
have done 是完成时的标志
与过去时有区别
have done 表示是现在完成时