cannot [ˈkænɑ:t]

例句:

• The worms cannot be seen by the naked eye.
  这些虫子用肉眼看不见。
  
• A special locking system means the door cannot be opened accidentally.
  特殊的锁定系统使门不会被意外打开。
  
• Since the birds interbreed they cannot be classed as different species.
  由于这些鸟进行杂交繁殖，不能把它们归为不同的物种。
  
• This video cannot be verified by the BBC.
  来自BBC
• They cannot see how lonely they will be.
  来自BBC
• Most villagers cannot even afford the bus fare.
  来自BBC