it is a good idea to check your vocabularynotebook every day这句话怎么分析
人气：387 ℃ 时间：2019-09-16 09:08:23
解答
it 这里做形式主语,真正的主语是to check your vocabularynotebook every day
也可以这样是To check your vocabularynotebook every day is a good idea.
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