悔之无及

Explanation: Sorry too late. 　　Usage: The main predicate; as the predicate attribute, object; containing derogatory 　　Source: Jin Chenshou "Three Kingdoms Dong Biography": "and almost drowning ship, Huizhiwuji." 　　Examples: If one has the name of resisting arrest, Nongjiachengzhen, one hundred hard v., ~ carry on. ("Ancient and Modern Novel" thirty-ninth volume) Thesaurus:  spare no pains, Not report labor, zealously and earnestly, work hard and not be upset by criticism; willingly bear the burden of office, bear the burden and heat of the day, Remorse, to regret a previous mistake, It will be too late to regret (often used in warning or dissuading somebody, Regret of less than, Afterthought Mo and, Office workers of any blame, be full of remorse