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prevent [pri'vent]    添加到生词本 复制网址
基本释义
  • vt.
    vi. 预防,防止,避免,阻止,妨碍
词形变化
  • 时　态：pre·vent·ed, pre·vent·ing, pre·vents
    名　词：pre·vent'er
    形容词：pre·vent'a·ble, pre·vent'i·ble
参考例句
    1. He was prevented by illness from joining the expedition.
      他因病不能加入探险。
    2. Shot out her arm to prevent the Bottle from falling.
      伸出她的手臂来抵挡掉下来的那个饼子
    3. Prevent records from being altered without approval.
      防止记录未经同意被修改。
    4. A substance used to prevent or treat diarrhea.
      抗腹泻药剂用于预防或治疗腹泻的物质
    5. The policemen were out in force to prevent rioting.
      警察人员有效地出动以防止暴动。
英英解释

  • 　2个动词解释

    1. keep from happening or arising; make impossible
      [同] forbid, foreclose, forestall, preclude, prevent
      [例]
      • My sense of tact forbids an honest answer
      • Your role in the projects precludes your involvement in the competitive project
    2. prevent from doing something or being in a certain state
      [同] keep, prevent
      [反] allow, let, permit
      [例]
      • We must prevent the cancer from spreading
      • His snoring kept me from falling asleep
      • Keep the child from eating the marbles