既有今日，何必当初

词语解释

1. [if there must be today,then why should there have been other days;if I had known it would come to this,Iwould have acted differently;if it has to be like this now,it's a pity it was even like that in the beginning] 既然有今日的如此结果,何必在当初那么做。用以感慨现今的不如意,而深悔过去的错误
   1. 宝玉在身后面叹道:“既有今日,何必当初。”——《红楼梦》

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国语词典

1. 既已落到今日如此地步，当初又何必那么做？多用以表示悔意或指责他人。
   1. 《红楼梦．第二八回》：「宝玉在身后面叹道：『既有今日，何必当初！』」

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网络解释

1. 既有今日，何必当初
   1. 既有今日，何必当初释义 既然现在后悔，当初为什么要那样做？
   2. 出处 《五灯会元·天衣怀禅师法嗣·惠林宗本禅师》：“曰：‘中下之流，如何领会？’师曰：‘伏尸万里。’曰：‘早知今日事，悔不慎当初。’”