身穿校服的乖骚年身穿校服的乖菇凉
[shēn chuān xiào fú de guāi sāo nián shēn chuān xiào fú de guāi gū liáng]
It means 'naughty boy/girl wearing school uniform.' There seems to be some humor embedded here, suggesting someone young and playful (often naughty) who wears neat school uniforms. Both 'boy' and 'girl' versions appear twice likely to convey the notion that gender doesn't really matter.