伴你一生随你一世
[bàn nĭ yī shēng suí nĭ yī shì]
It means 'Be with you all my life, follow you forevermore.' This could express a firm vow of loyalty and dedication to another soul, possibly representing the longing for an eternal relationship, unwavering support to the loved ones no matter the circumstances in life, emphasizing steadfast companionship and fidelity.