The understanding that germs — primarily bacteria, viruses, fungi, and protozoa — are responsible for the spread of many diseases led to a massive acceleration in researchers identifying specific disease causes, preventers, and treatments.

细菌——主要是细菌、毒、真菌和原生动物——是许多传播的原因，这一认识大大加快了研究人员识别特的因、法和治疗法的速度。

We need to paint the underneath with a rust preventer.

【underneath】我们需要用锈漆把底部刷一下。

But you have to remember, Bradbury called himself a preventer of futures, not a predictor of them.

但你必须记住，布拉德伯里称自己为未来的者，而非言家。

Firstly, getting married later allows the other two preventers of divorce

发挥作用。