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。
Then see which plants grow higher, measure them with a ruler and write down your results.
过后看看哪种西红柿长得比较高,用尺子量量并记录下你的实验结果。