彻夜不眠徹夜不眠

chè yè bù mián

Meaning

to be sleepless all night

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Characters

彻chèpenetrating, pervasive; to penetrate, to pass through彳切夜yènight, dark; under cover of night亠亻夕不bùno, not, un-; negative prefix一眠miánsleep, shut-eye, hibernatation目民