相關Itiscommonthatmorean的文學知識

問題詳情：Itiscommonthatmoreandmorehighschoolstudentsopen___51___(them)ownmicroblogsontheInternet.Foronething,itcanprovideacolorfulplatformtoshowtheirtalent.Foranother,itisausefulway___52___(reduce)thei...