If you educate the public about dangerous diseases they can protect themselves, which will help to halt the spread.
如果你能教育公众如何来防治危险疾病,他们就能够保护好他们自己,从而阻止疾病的传播。
where chance discoveries play a much larger part than they do in physical and mechancal industries.
同物理和机械工业相比,化学工业中偶然发现的机会要多得多。