你若爱我不悔我定生死相许
[nĭ ruò ài wŏ bù huĭ wŏ dìng shēng sĭ xiāng xŭ]
If You Truly Love Me, I Will Devote My Life To You. This phrase indicates unconditional commitment. If one side truly falls in love, they promise unswerving devotion until death, highlighting eternal and unwavering affection.