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。
with, superimposed upon, it the continents, together with the islands and other features of the oceans.
上面附加着大陆以及岛屿和海洋的其他形态。