• 例1:She saved him from drowning. (她救了他⼀命,使他免遭淹死。)
  • 例2:For many years, the truth was kept from the public. (这么多年了,公众⼀直都不知道真相。)
  • 例3:We hope to prevent anything unpleasant from happening. (我们希望防⽌任何不愉快的事发⽣。)