More Parents Favor School Phone Bans

越来越多家长支持学校全天禁用手机

文章围绕“More Parents Favor School Phone Bans”展开；正文首段正常起篇，结尾收束于“three years out we’re not seeing gains.” ANTONIO PEREZ/CHICAGO TRIBUNE/GETTY IMAGES; RJ SANGOSTI/THE DENVER POST/GETTY IMAGES”

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