海深深不过你的心天黑黑不过你的眸
[hăi shēn shēn bù guò nĭ de xīn tiān hēi hēi bù guò nĭ de móu]
'The Sea Is Deep, But Not As Much As Your Heart; Night Is Dark, But Not As Much As Your Eyes.' These poetic lines imply someone's deep, incomparable feelings towards another, suggesting that this person’s heart is unfathomably complex, much deeper than even the depths of the ocean, while their eyes are so captivating they seem darker and more intriguing than night itself.