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。
It was his job to repair bicycles and at that time he used to work fourteen hours a day.
他那时的工作是修理自行车,并且通常是一天工作14个小时。