regret to do sth. 很遗憾地／抱歉地做...（事情还没有做）
regret doing sth. 很遗憾/后悔做了...（为已经做过的事而感到遗憾）
now i regret having done改成to have done不行吗?为什么?
now i regret having done改成to have done不行吗?为什么?
英语人气：366 ℃时间：2020-03-22 14:44:04
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