- 问题详情:OneeventthathelpseducateyoungpeopleaboutthingstheycandoforothersisNationalYouthServiceDay(NYSD).Everyyearonthisday,organizationsalloverthecountrycelebrateyoungvolunteers,educateyoungpeopleabouthowtheycanhelptheircountry,andinvitethemtopartici...
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