我会陪你到世界尽头我会爱你到世界末日
[wŏ huì péi nĭ dào shì jiè jĭn tóu wŏ huì ài nĭ dào shì jiè mò rì]
'I'll accompany you to the edge of the world and love you until the end of time.' It signifies a firm vow of commitment that transcends ordinary boundaries or time.