He thinks that it will be difficult for a robot,为什么要用that it而不是that
问题描述:
He thinks that it will be difficult for a robot,为什么要用that it而不是that
答
that it ?理解错了。that在这做的不是主语,你把后面的it去掉,整个句子就缺成分了
答
He thinks that+从句【it will be difficult for a robot】
当然,也可以是你说的那样He thinks that will be difficult for a robot
答
that在这里是引导宾语从句(其实可以省略that),这句话的宾语是“it will be..."