曾经的我们海誓山盟现在的我们形同陌路
[céng jīng de wŏ men hăi shì shān méng xiàn zài de wŏ men xíng tóng mò lù]
'In the past, we vowed undying love for each other, but now we barely speak.' It reflects on the sad reality that over time people can change and drift apart even from those they once loved dearly.