The Use Of Mobile Phones

Today, more and more people have mobile phones. It's so convenient to our life,we can call others or send short messages.
For example, we could contact friends by mobile phones when we haven't seen them for long time . Mobile phones always help us, such
as listening to music, surfing the internet, looking for new words, playing games and so on. They are all the time at our
side.

Actually, we also should try our best to use mobile phones in right ways. In my opinion, it's bad for us to use phones all
the time, because it can harm our health.