你染绿了我的夏天
[nĭ răn lǜ le wŏ de xià tiān]
'You colored my summer green.' Green is associated with vitality, growth, new life, freshness, etc. Summer here probably stands for memories or emotions in a certain stage of his life. Through the personification of the 'summer' being dyed green by another person, the netizens want to indicate someone has made an extremely pleasant and fresh impact on their life or soul.