English translation, please translate English sentences in red font into Chinese. thank you

1. You should stand up when teachers and visitors come into the classroom.

During class, you must stay in the classroom or study place. Arrive on time and bring everything you need before class, and dress neatly. Men are not allowed to have long hair.

Don't leave school unless you get permission.

You can't eat in the canteen, and radios and personal computers can only be used in the dormitory (to be allowed).

You can't use personal computers in libraries and classrooms.

I posted it myself.