海枯石烂我有你天荒地老你有我
[hăi kū shí làn wŏ yŏu nĭ tiān huāng dì lăo nĭ yŏu wŏ]
When seas run dry and rocks decay, I will still have you; till the earth turns upside down, you’ll always have me as well. In a very poetic style conveying undying love, devotion, companionship lasting even after many changes