如果你陪我到天荒地老我愿爱你到世界末日
[rú guŏ nĭ péi wŏ dào tiān huāng dì lăo wŏ yuàn ài nĭ dào shì jiè mò rì]
A romantic sentiment saying, 'If you stay with me until time ends, I am willing to love you till the end of the world.' It portrays unwavering commitment based on conditional loyalty.