Be quiet on class.上课安静。
Don't throw rubbish casually.不要随处乱扔垃圾。
No smoking or drinking.不要吸烟喝酒。
Don't fight or say rude words.不打架不骂人。
Don't bully girls.不要欺负女生。
Ask for leave on emergency.有事请假。
Be friendly to classmates.友好待人。
No cheat in exam.考试不能作弊。
please care forthe young and old. 请尊老爱幼。
Please caringfor public property .请爱护公物。
keep quiet 保持肃静Don't wear strangely.不要穿奇装异服。