On the road there is little to protect them from mud, insects, and bird droppings.
在路上，几乎没有东西去保护他们免遭泥土、虫和鸟粪的侵袭。
Take bird flu for example. If we have some basic knowledge of science, we would realize that it's much more likely we shall die of heart disease or a road accident.
以禽流感为例，如果我们对这方面的科学有所涉猎，我们就会明白人类死于禽流感的几率远远低于死于心脏病和交通事故。
Take bird flu for example. If we have some basic knowledge of science, we would realize that it's much more likely we shall die of heart disease or a road accident.
以禽流感为例，如果我们对这方面的科学有所涉猎，我们就会明白人类死于禽流感的几率远远低于死于心脏病和交通事故。
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