你是我刻骨銘心的至愛你是我永生難忘的真情
[nĭ shì wŏ kè gú míng xīn de zhì ài nĭ shì wŏ yŏng shēng nán wàng de zhēn qíng]
'You are my unforgettable true love and the sincere emotion I can never forget all my life.' Exemplifies an eternal, unforgettable love that leaves a profound mark on one's heart.