我心似海愿你久溺深水蓝海
[wŏ xīn sì hăi yuàn nĭ jiŭ nì shēn shuĭ lán hăi]
'My Heart Resembles an Ocean; I Wish You Would Be Immersed in Its Deep Waters.' It describes a profound affection like an oceanic depth and wish for a person to stay enveloped in such boundless care and support.