悔不当初

Explanation: Original: the original, the beginning. Began to regret doing 　　Usage: Verb-object type; as the predicate attribute; used in conjunction with the alert today 　　Source: Zhao Xue Tang Wei, "Xie silver workers" poem: "If I had known how hard word, repent learn the rule of silver." 　　Examples: The loud sigh, a great ~ the mean. (High-Yang "Qing Unofficial History" the book) 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, It will be too late to regret (often used in warning or dissuading somebody, Huizhiwuji, Regret of less than, Afterthought Mo and, Office workers of any blame, be full of remorse