The lives of teens in the past and present.Whether it is finding the knowledge outside the classroom. Foreign body makeup That is to say, to the following:
The lives of teenagers in the past and present very different , whether it is a convenient way to learn outside the classroom. Author of the body that is to say the following.
The lifestyle of teenagers in the past and the present are different.Whether it was convenient to find knowledge outside the classroom, different body.Are talking about the following