Read Edit View history 煞费苦心 shàfèikǔxīn painstaking Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 煞费苦心/煞費苦心 · shàfèikǔxīn · painstaking 2026/03/04 煞费苦心 / 煞費苦心 shàfèikǔxīn painstaking to take a lot of trouble; at the cost of a lot of effort or mental energy 为了设计这个方案，他煞费苦心。 idiom created sense Mar 4, 2026, 02:25 AM