我愿为你画地为牢甘愿为你画地为牢
[wŏ yuàn wéi nĭ huà dì wéi láo gān yuàn wéi nĭ huà dì wéi láo]
Expressing a deep commitment in a relationship, it signifies voluntarily choosing to confine oneself within self-imposed limits out of love for someone, willing to sacrifice freedom for them.