愿用一生守候你伴你一世照顾你
[yuàn yòng yī shēng shŏu hòu nĭ bàn nĭ yī shì zhào gù nĭ]
It means 'Willing to Keep You Company and Take Care of You All My Life'. It reflects a profound commitment, dedication, and love for someone special who wants to provide lifelong companionship and care.