我想陪你一起慢慢变老
[wŏ xiăng péi nĭ yī qĭ màn màn biàn lăo]
Wǒ xiǎng péi nǐ yīqǐ mànmàn biàn lǎo translates to 'I want to grow old with you slowly.' It conveys a deep longing for a lifelong companion with whom the speaker wants to share every moment until old age.