- 問題詳情:Nowadays,mobilephonesaremoreandmorepopularinoursociety.Evenmanystudentsofhighschoolshavegottheirownmobilephone.Themobilephonedoesofferalotconveniencetous.Withamobilephone,wecancalltheothersnotmatterwhereweare.Wecanalsosendshortmessages.But,th...
- 17175