不分昼夜bùfēnzhòuyèTop 50000Meanings1. day and night2. round-the-clockCharacters used不no分to divide昼daytime夜nightExamples1你nǐ这样zhèyàng不分昼夜bùfēnzhòuyè地de工作gōngzuò，将会jiānghuì伤害shānghài自己zìjǐ的de健康jiànkāng。If you work day and night, you will lose your health.