帮忙翻译为英语额

It is a waste of time to send SMS.
You need to pay money for using your cellphones, but middle school students can't make money themselves.
It's not good if your cellphone rings in classes.
It is convenient to communicate with others with cellphones, but it may disturb the normal orders on the campus.

Sends the short note to waste time the handset expense to spend, but middle-school student did not make money to attend class the handset to make a sound is not good deed takes the handset convenience relation communication. But will harass the campus order