陪你到天长伴你到地久
[péi nĭ dào tiān zhăng bàn nĭ dào dì jiŭ]
'Pei ni dao tian chang ban ni dao di jiu' is a romantic expression meaning 'Accompany you for eternity'. This shows dedication and commitment in long-lasting relationships or friendships, highlighting the user’s valuing eternal ties with someone special.