有你冬天就不冷有你夏天就不热
[yŏu nĭ dōng tiān jiù bù lĕng yŏu nĭ xià tiān jiù bù rè]
This means literally 'with you, winter isn’t cold; with you, summer isn’t hot.' It describes a feeling where having a loved one can make adverse situations, such as harsh weather, more bearable and cozy.