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。
In a long drop, they reach speeds of 60 miles an hour and more.
在一个长长的跌落过程中,它们可以达到每小时60里甚至更快的速度。