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but if robots are to reach the next stage of laborsaving suility,they will中的为什么用are to reach?

分类: 作业答案 • 2022-04-30 16:03:18

问题描述：

but if robots are to reach the next stage of laborsaving suility,they will中的为什么用are to reach?

答

be to do sth.表示将来时,将要