夜不见月光的蓝日不见阳光的暖
[yè bù jiàn yuè guāng de lán rì bù jiàn yáng guāng de nuăn]
The Night without Moonlight's Blue, the Day without Sunlight's Warmth - Depicts a state of emotional coldness or darkness in both day and night, expressing feelings of hopelessness or desolation.