Advise the teacher to give up smoking.

Teacher, the students are here to give you some advice: teacher, haven't you always said: no smoking? Didn't you say it was harmful to human body? Teacher, cigarettes contain nicotine and are poisonous! ! You don't know that smoking can damage the nervous system, make people's memory decline and age prematurely. Is this what you want? Teacher, you are a learned man, I believe you won't understand! !

Hey, hey, graffiti! ! I just went to primary school! !