mobile phones have many benefits for people.first,it much more convenient than telephone.it is easy and handy to wherever people go and call however far away people are.second,if people are ill or something urgent,they can make a call immediately.third,we can have fun with mobile phones when we study tired.
And mobile phones also have some disadvantages.first,students don't have self control,they spend lots of money on it.second,a common problem is that when students are having class,the ring of phone may interrupt others.third,nowadays,mobile phone has more functions.there is even have Internet,it is a big attraction to teenagers,they play mobile phones everywhere and the whole day.
觉得好吗,就选我为满意答案吧,绝对自己写的,不用担心老师说抄袭什么的,谢谢.