必须要说清楚的是，并不是人人都拥有一台记录他们睡眠模式的设备；在一些国家里，可能只有最富有的人才能拥有这样一台设备。
It should be made clear that not everyone has a device to record their sleep patterns; in some of these nations, it's likely that only the richest people do.
从偶尔有害饮酒到每日大量饮酒等一系列酒精消费模式在几乎所有国家都造成严重的公共卫生和安全问题。
A broad range of alcohol consumption patterns, from occasional hazardous drinking to daily heavy drinking, creates significant public health and safety problems in nearly all countries.
在很多国家，城市规模都遵循一个显著的正规模式，即所谓的位序-规模法则。
In many countries, city sizes follow a remarkably regular pattern, known as the rank-size rule.
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