百思不解 bǎi sī bù jiě 🔊 to remain puzzled after pondering over… + Keep this word Meanings bǎi sī bù jiě to remain puzzled after pondering over sth a hundred times (idiom)to remain perplexed despite much thought Its characters 百bǎihundredHSK 1思sīto think不bùnot; noHSK 1解jiěto divideHSK 6