- 问题详情:MakeADifferenceDayisthelargestnationaldayofcommunityserviceintheUSA,whichtakesplaceonthefourthSaturdayofOctober.WhotakespartinMakeADifferenceDay?Anyone!Youngandold,individualsandgroups,anyonecancarryoutavolunteerprojectthathelpsothers.Itmight...
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