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Open the tool →裁心镂舌 (cái xīn lòu shé) is a Chinese idiom (chengyu) meaning “to rack one's brains and exhaust one's eloquence”.
裁心镂舌 is pronounced cái xīn lòu shé in Mandarin Chinese.
Literally, 裁心镂舌 means “Cut heart, carve tongue”. It is used to mean “to rack one's brains and exhaust one's eloquence”.
形容用尽心思,费尽口舌。