相关Itisimportanttodeala的文学知识

问题详情：Itisimportanttodealattherubbishincities.Howtopropertreatrubbishwhatmaycausealotofproblemsshouldbestudiedcarefully.Theymaypollutetheairandthewater.Nowwe’vetakensomemeasures.Somerubbishissorted...