唯有你不离不弃唯有你生死相依
[wéi yŏu nĭ bù lí bù qì wéi yŏu nĭ shēng sĭ xiāng yī]
It means 'You Are the Only One Who Never Abandons Me; You Stick With Me Through Life And Death.' It speaks about loyalty so profound that only the referred person would remain loyal even at extreme lengths or during life-changing hardships.