It's already common practice worldwide to limit students' use of mobile phones in primary and secondary schools.

限制中小学生使用手机已经是全世界的普遍做法。

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Limit scrolling to one direction, unless secondary scrolling cannot be avoided.

限定只往一个方向滚动，除非无法避免第二方向的滚动。

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Traffic safety; Accident scenes; Regional division; Secondary traffic accident; Speed limit; Traffic signs.

交通安全； 事故现场； 区域划分； 二次交通事故； 速度限制； 交通标志。

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Dr Chisholm stressed that GPs do not blame their hospital colleagues for the difficulties their patients experience in getting secondary care as they recognise that hospitals, too, are stretched to the limit.

BBC: GPs highlight 'crisis in care'