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- 问题详情：GettinglesssleephasbecomeabadhabitformostAmericankids.Accordingtoanewsurvey(调查)bytheNationalSleepFoundation,51%ofkidsaged10to18gotobedat10pmorlateronschoolnights,eventhoughtheyhavetogetupearly.LastyeartheFoundationreportedthatnearly60%of7-t...
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