苦心经营 kǔxīnjīngyíng to build up painstakingly Definitions Defs Origin Strokes Stroke Words Sentences Sents 苦心 kǔxīn painstakingly to do something with great effort or care; painstakingly; to take a lot of trouble经营 經營 jīngyíng verb to manage to manage, operate, or run (a business, project, etc.); to deal in or carry (specific goods or services)
