伴你到垂暮之年陪你到白首之期
        
            [bàn nĭ dào chuí mù zhī nián péi nĭ dào bái shŏu zhī qī]
        
        
            Translates into 'Accompany you until we're elderly, till our hair turns white'. Conveys a heartfelt promise of lifelong devotion, indicating unwavering support and lasting companionship.