花开那年你不在繁华落幕等你来
[huā kāi nèi nián nĭ bù zài fán huá luò mù dĕng nĭ lái]
'That year when flowers bloomed, you were not there; waiting for your return after the splendor has faded'. It implies deep sentiment about unrequited feelings or a poignant memory of a specific period filled with longing and waiting.