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。
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。
For example, most pets are very dirty and they have a lot of diseases with them which will make us ill.
例如，大多数宠物很脏，他们有很多的疾病，会使我们生病。
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。
Most antibiotics directly attack the microbes that make us ill. Penicillin, for example, weakens bugs' tough outer wall to the point that many of them simply explode.
大多数的抗生素直接攻击使我们致病的细菌，比方说盘尼西林，能使细菌的坚韧的细胞外壁软化到一定程度，然后使它们中的大多数简单地胀爆死掉。
They will not make us really ill.
它们不会让我们真的生病。
They will not make us really ill.
它们不会让我们真的生病。
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