painstakingly work diligently and conscientiously earnest and assiduous zealously and earnestly be (always) diligent and conscientious be diligent and conscientious
He sweated away at his work with all his heart.
他全心全意、勤勤恳恳地埋头工作。
—— 给力词典精选He was incompetent yet hardworking.
他能力较弱,但工作还是勤勤恳恳的。
—— 给力词典精选He industriously engages in unostentatious hard work.
他勤勤恳恳,埋头苦干。
—— 给力词典精选Nim´s a nice , hard - working guy.
尼姆是个勤勤恳恳的好人。
—— 辞典例句Virginia was still struggling to be a conscientious and dedicated mother.
弗吉尼娅还在尽力成为一位勤勤恳恳、全心奉献的母亲。
—— 柯林斯例句