任劳任怨

Explanation: Director: play, stand. Not afraid of hardship, and is not afraid innocuous. 　　Usage: Joint type; as predicate, attributive, adverbial; with compliment 　　Source: Qing Yan Guangmin "Yan home possession of Letters": "but keeps a vector public Vector careful of the heart, worthy of housing leakage, while the door to women in the hard working, all the non-pen can do." 　　Examples: And Yang Sichang also fully implement his proposal, ~. (Yao Xueyin "Rereading" The second volume Chapter XIX) Thesaurus:  spare no pains, Not report labor, zealously and earnestly, 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, Huizhiwuji, Regret of less than, Afterthought Mo and, Office workers of any blame, be full of remorse