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。
By 12.01, those fluctuations will already have created small errors one foot away.
到12∶01时,那些波动就已经会在1英尺远的地方造成偏差。