费尽心思 fèijìnxīnsi rack one's brains Definitions Defs Origin Strokes Stroke Words Sentences Sents 费尽心思 (費盡心思) fèijìnxīnsi rack one's brains expression to rack one's brains; to take great pains to think something through Sources Definitions CC-CEDICT
费尽心思 (費盡心思) fèijìnxīnsi rack one's brains expression to rack one's brains; to take great pains to think something through Sources Definitions CC-CEDICT
