Read Edit View history Discussion 苦工夫 kǔgōngfu painstaking effort Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 苦工夫 kǔgōngfu painstaking effort strenuous work or great effort put into a task Edit Delete References Add reference variant 苦功夫/苦功夫 → 苦工夫/苦工夫 Edit Delete