The same goes for illicit drug use.

这有点类似于那些非法药物的作用。

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Illicit drug use in the United States, as in Britain, is very common and usually begins in adolescence.

在美国，就像在英国一样，药物的非法使用十分常见，而且往往开始于青春期。

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The patterns of illicit drug use showed significant variations by age within the 50-and-over population.

通过调查图表我们可以看出，50岁以上的人随着年龄段的不同，用药情况呈现出显著差异。

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Some observers have suggested that illicit drug use has become so widespread that fans expect it.

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Five pilots from Lion Air have been arrested for illicit drug use in the past two years.

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Britain continues to have a worse record for illicit drug use than any of its European neighbours.

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