1. 動詞
   prevent第三者單數現在式:
   不及物動詞:
   阻止, 妨礙
   及物動詞:
   防止...(人事物)
   預防...(人事物)
   阻止...(人事物)
   妨礙...(人事物)
   制止...(人事物)
   prevents ...(a: 人事物) from ...(b: 動詞ing ...):
   

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   同義字詞
   avert,forestall,head off,help,obviate,preclude,stave off
   

例句

1. This prevents drafts underneath the door.
2. It is human sin that prevents us seeing it.
3. Sanitary, closed spout prevents water splash.
4. At this point line drag prevents further gains.
5. CO prevents oxygen from being used by your body.
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