周二，墨西哥城一名学生在进入教室前交出手机。墨西哥已对学校内使用手机加以限制。
A student turning over his phone before entering a classroom in Mexico City on Tuesday. Mexico has clamped down on phone use in schools.
纽约时报
墨西哥禁止儿童在社交媒体上接触暴力内容Mexico Bans Violent Content on Social Media for Children
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