It suddenly occurred to one of the workers to open up the box.开头的It是什么用法.
It suddenly occurred to one of the workers to open up the box.开头的It是什么用法.
英语中发现好多这种用法,为什么要用这种用法.是为了强调或者别的,
英语中发现好多这种用法,为什么要用这种用法.是为了强调或者别的,
英语人气：493 ℃时间：2020-06-19 17:40:09
优质解答
形式主语,保证前后平衡,it 就是 to open up the box,英语中一般不会把这么长一串做主语,所以出来了个It,替代它们,保证句子的平衡
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