老师和家长都同意限制学生使用手机。
Both the teacher and the parent are in agreement on limiting students' phone use.
限制学生使用手机在一些国家已经是很普遍的做法。
It's already common practice in some countries to limit students' use of mobile phones.
限制中小学生使用手机已经是全世界的普遍做法。
It's already common practice worldwide to limit students' use of mobile phones in primary and secondary schools.
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