少女抓紧我的手少年此生别放开
[shăo nǚ zhuā jĭn wŏ de shŏu shăo nián cĭ shēng bié fàng kāi]
It literally means 'the girl holds my hand tight, the boy don’t let go for this life.' It depicts a strong bond or deep connection between two young lovers who vow to never part.