不分昼夜 bùfēnzhòuyè day and night Definitions Defs Origin Strokes Stroke Words Sentences Sents 不分 bùfēn verb to not distinguish to make no distinction; to not divide, separate, or discriminate between昼夜 晝夜 zhòuyè nounadverb day and night day and night; round the clock; a period of 24 hours
