你愿久留我便久陪
[nĭ yuàn jiŭ liú wŏ biàn jiŭ péi]
'你愿久留我便久陪' (Nǐ yuàn jiǔ liú wǒ biàn jiǔ péi) translates to 'If you want to stay for a long time, then I will be here to keep you company,' representing a promise or desire to remain by someone’s side unconditionally.