悉心 xīxīn with utmost care Origin Definitions Defs Strokes Stroke Words Sentences Sents 悉心毕力 xīxīnbìlì to do one's utmost to devote all of one's mind and energy to a task; to do everything in one's power悉心竭力 xīxīnjiélì to do one's utmost to devote all one's heart and strength to a task; to do everything in one's power