MakeADifferenceDayisthelargestnationaldayofcommunityser...
问题详情：MakeADifferenceDayisthelargestnationaldayofcommunityserviceintheUSA,whichtakesplaceonthefourthSaturdayofOctober.WhotakespartinMakeADifferenceDay?Anyone!Youngandold,individualsandgroups,anyonec...