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couldn't have finished和 can't have finished 的区别
人气:140 ℃ 时间:2019-08-19 02:31:01
解答
couldn't have finished 表明已经完成的事,本来可以不去完成,是一种虚拟语气.
can't have finished ,表示没有完成,或者没有能力完成.
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