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。
No, not exactly. But later, peole developed a way of printing, using rocks.
不完全是这样。但后来,人们利用石头,研制了一种印刷方法。