十年前陪你穿校服十年后陪你换婚纱
[shí nián qián péi nĭ chuān xiào fú shí nián hòu péi nĭ huàn hūn shā]
Meaning 'I will accompany you to wear uniforms ten years ago and then dresses after ten years', it signifies loyalty in friendship or romance, expressing a desire for lasting companionship from school age till getting married.