枉费心机 wǎngfèixīnjī to rack one's brains in vain Definitions Defs Origin Strokes Stroke Words Sentences Sents 枉费 枉費 wǎngfèi to waste to waste something such as energy, effort, or breath; to try in vain心机 心機 xīnjī scheming thinking or planning, often with a hidden agenda; calculating; scheming; resourcefulness
