爱你爱到天荒地老如何爱你爱到地球自毁如何
[ài nĭ ài dào tiān huāng dì lăo rú hé ài nĭ ài dào dì qiú zì huĭ rú hé]
'Love you until heaven and earth perish; love you until the Earth destroys itself.' An extreme expression of undying love, emphasizing its intensity and timelessness.