- 问题详情:WorldBookDayfallsonApril23everyyear.ItwassetupbytheUnitedNationsEducational,Scientific,andCulturalOrganization(UNESCO)in1995toencouragepeople,especiallyteenagers,todiscoverthepleasureofreading.Itisalsothedaytohonorgreatwriters,forexample,Willia...
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