我是你孩子的爸老年的伴你是我孩子的妈老年的伴
[wŏ shì nĭ hái zi de bà lăo nián de bàn nĭ shì wŏ hái zi de mā lăo nián de bàn]
Expresses deep commitment and devotion; it signifies being a partner not only in life but also parents to their children together throughout the long journey.