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what has been down has been down成分分析
人气:418 ℃ 时间:2020-01-12 06:31:11
解答
这个句子是主语从句,
其中"what has been down"是主语(或主语从句),"has been down"是谓语.为什么HAS BEEN DOWM后面不+宾语因为这里是被动语态。
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