久溺深海我是她心久陷深海我为他命
[jiŭ nì shēn hăi wŏ shì tā xīn jiŭ xiàn shēn hăi wŏ wéi tā mìng]
Having long been submerged in the deep sea, her heart and my life are both ensnared in its depths. It vividly describes a person’s deep affection and dedication, possibly self-sacrifice for love or a specific thing/person.