曾经的海誓山盟只是句对白
[céng jīng de hăi shì shān méng zhĭ shì jù duì bái]
Translating as 'Past Oath Vows Turn Out To Be But Words,' it conveys skepticism over once grand promises, viewing them retrospectively as nothing more significant than mere lines spoken in a drama, signifying disillusionment regarding commitment and sincerity.