Ithasbeenahottopicinrecentyears.E-bookisbecomingmoreandmorepopular.SomepeopleeventhinkthattraditionalbookwillreplacedbyE-book.

　　E-bookisusefulandhasalmostchangedourwayofliving.TherearesomeadventageofE-book.E-booksaremuchcheaperandmoreconvenient.Asweknow,theyaremucheasiertotake.

　　EverythinghastwosidesandE-bookisnotanexception.E-bookhasbadeffectonpeople'seyes.Andtherearemoreradiationwhichisharmfultopeople'sbody.

　　Inmyopinion,E-bookcannottaketheplaceoftraditionalbook,butit'sanusefulproduct.