当初 dāngchū HSK3 originally Origin Definitions Defs Strokes Stroke Words Sentences Sents 悔不当初 huǐbùdāngchū deeply regret to regret one's past deeds早知今日何必当初 zǎozhījīnrìhébìdāngchū regret if one had known it would come to this, one would not have acted thus; to regret vainly one's past behavior in light of current consequences