Scientists have always been aware of how fear can rule our lives and make us ill.

科学家们从来都知道恐惧是如何严重影响我们的生活并使我们患病的。

《柯林斯英汉双解大词典》

This is why many viruses, such as measles, make us ill only once.

这就是为什么许多病毒，如麻疹，只会使我们生病一次。

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Indeed, in a globalized world, viruses are impervious to lines drawn on maps. That fact ought to make us ill at ease.

的确在全球化的世界里地图上的国界线对于病毒来说没有任何意义。这个事实应该让我们局促不安了。

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