having done是分词结构,是HAVE DONE的变形
给你几个例句:
Having done my homework,I went to play football with my friends.
做完了作业,我就去和朋友踢足球玩去了。
The earthquake,having claimed 1,000 lives,was really an unfortunate disaster.
这场夺走1000个生命的地震真是个不幸的灾难。
I have done my homework.我已经做完了我的作业。
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