不许染发英文

Don't dye hair, and don't keep long hair for boys!Don't eat in classroom, and throw rubbish about.

Please don't make big difference on my hair length. I don't want to have my hair dyed either.

Don't dye your hair.Boys aren't allowed to have long hair.

No hair-dyeing, long hairs for boy students are not allowedEating in the classroom is prohibited. No litter.

不许染发，男生不许留长发英文：No hair, no long hair for boys。或者：Not allowed to hair, boys are not allowed to stay long hair。