你似深海我愿溺你而亡
[nĭ sì shēn hăi wŏ yuàn nì nĭ ér wáng]
'You are like the deep sea and I wish to drown with you' expresses a willingness to go through everything including challenges for the love of someone, just as facing the danger in the deep sea together, conveying extremely passionate affection and determination.