.In the above picture,there are four persons including student,businessman,career women and taxi driver playing smart phone on the road. The interesting picture provokes us to think about the addition to smartphones. As we know, with the development of society,almost everyone owns a mobile phone and obviously, smartphone has become an indispensable part of modern life. Through the use of cellphones,people can browse entertainment gossip,play mini-games,update circle of friends and upload sel
