爱爱爱爱到海枯石烂走走走走到天荒地老
[ài ài ài ài dào hăi kū shí làn zŏu zŏu zŏu zŏu dào tiān huāng dì lăo]
Love until the sea dries up and stones crumble; go until the heavens change and earth ages – This romantic expression signifies undying and eternal affection towards someone.