You should listen carefully.
You shuold be polie to teacher.
You shouldn't be rude.
You shouldn't talk to other in the class .
You should ……
用英语怎么表达校规用英语把上课时的“不许”表达出来.不是校规用英语表达，是写几个学校规定的规则。
You should listen carefully.
You shuold be polie to teacher.
You shouldn't be rude.
You shouldn't talk to other in the class .
You should ……