天长地久纯属永久
[tiān zhăng dì jiŭ chún shŭ yŏng jiŭ]
'Eternal forever'. In Chinese, saying 'eternal forever' contains both positive meanings (eternity means never ends) and joking implications - sometimes it might imply eternal wait or unchanged status quo in relationships with irony or resignation, or simply emphasize that time passes, the thing remains the same, conveying different layers of connotations.