勞心苦思 Save Sign in to save words Simplified: 劳心苦思 láoxīnkǔsī ㄌㄠˊ ㄒㄧㄣ ㄎㄨˇ ㄙ to rack one's brains to think hard Character by character 勞(láo)surname Lao 心(xīn)heart 苦(kǔ)bitter 思(sī)think A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0