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In fact it was a hard job for my father to support so big a family at that time.
为什么要用it?
人气:460 ℃ 时间:2020-03-25 13:02:21
解答
it 是形式主语,真正的主语是to 后的support so big a family at that time.
这也是个固定句型it is +adj(for sb)to do sth对某人来说做某事是~
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