任劳任怨

任劳任怨 [rèn láo rèn yuàn]

1. ■ bear hardship without complaint; bear responsibility without grudge; bear up under affliction; devote oneself to duty wholeheartedly and without complaint; do everything uncomplainingly; fulfill one's duties faithfully and energetically; hardworking and uncomplaining; willingly to bear the burden of office; work hard and not be upset by criticism; work hard without complaint; work uncomplainingly and selflessly