短发齐肩我们承诺一起结婚
[duăn fā qí jiān wŏ men chéng nuò yī qĭ jié hūn]
Translates into 'Shoulder-length hair, we promise to marry together.' This likely signifies a meaningful period of one's life linked with a cherished relationship and marital promises, perhaps evoking memories or aspirations of young love.