陪我从短发并肩到长发及腰陪你从短发并肩到长发及腰
[péi wŏ cóng duăn fā bìng jiān dào zhăng fā jí yāo péi nĭ cóng duăn fā bìng jiān dào zhăng fā jí yāo]
This means 'accompany me from short hair shoulder by shoulder until long hair reaches the waist, and accompany you likewise'. It poetically describes growing together through life’s journey side by side with another person.