许他一生长安愿她一世欢颜
[xŭ tā yī shēng zhăng ān yuàn tā yī shì huān yán]
'许他一生长安愿她一世欢颜' translates into 'Wishing him a life full of health (long peace), wishing her laughter forever.' This is an expression of heartfelt wishes for loved ones, hoping they will live happily ever after. '长安' (Changan) here is often used as a metaphor for well-being and peaceful living.