惨澹经营 cǎndànjīngyíng to work with painstaking effort Definitions Defs Origin Strokes Stroke Words Sentences Sents 惨澹 慘澹 cǎndàn painstaking painstaking; by great effort; putting oneself out for someone经营 經營 jīngyíng to plan to organize, plan, or arrange carefully, such as when constructing a building or cultivating relationships
