问题描述：
Defeated three times in a round,the boxer decided to give up fighting.
defeated本身就是过去分词可以表被动与完成,需要该成having been defeated defeated与 having been defeated 有什么不同?
I found her seated her son on the chair.错在哪,怎么改?
defeated本身就是过去分词可以表被动与完成,需要该成having been defeated defeated与 having been defeated 有什么不同?
I found her seated her son on the chair.错在哪,怎么改?
问题解答：
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