爱你久久你终走爱你深深不见底
[ài nĭ jiŭ jiŭ nĭ zhōng zŏu ài nĭ shēn shēn bù jiàn dĭ]
Loving You For Long but You Finally Leave; My Love For You Goes Deeper Than I Can Measure. This expresses a deep sorrow where one's love for someone has been intense and enduring but still ends with abandonment.