穿上校服在大街上跑脱了校服在校园上跑
[chuān shàng xiào fú zài dà jiē shàng păo tuō le xiào fú zài xiào yuán shàng păo]
It humorously describes wearing a school uniform while running outside school versus without one within school premises. This might express a contrast between freedom inside and outside societal norms, reflecting the carefree youthfulness often yearned for during school life.