With the development of internet, some "We Media" appears. On the one hand, we can benefit from it. such as we can express our opinions, and also can get something interesting. on the other hand, something bad appears.
As we all know, more and more teenagers are addicted to mobile phone. though their parenrs often prevent it, they still play privately. In this situation, they can see some unhealthy information. It's very terrible for children's growth.
So, the internet is double–edged sword. we must get it properly.
