此生非你不嫁此生非你不娶
[cĭ shēng fēi nĭ bù jià cĭ shēng fēi nĭ bù qŭ]
In This Life, I'll Only Marry You: Conveys a profound commitment to one specific person, meaning that they are the only choice for life-long partnership, showcasing unshakable loyalty and exclusivity in romantic ideals.