来自《耶鲁大学开放课程：新生有机化学 第7集 第7集》

• 
  
  There's another bond through which that plane cuts,
  这也是一个被横截掉的键
• 
  
  which is the one on the right,
  就是右边这个
• 
  
  through those three-membered rings, right?
  处在这些三角环上的键
• 
  
  And what do you notice about that bond?
  你们发现了什么
• 
  
  It isn't there.
  那里没有键
• 
  
  There isn't any electron density for that bond.
  这个键的位置没有任何电子密度
• 
  
  So it's a missing bond.
  这个键消失了
• 
  
  This is what we'll refer to as pathological bonding,
  这就是我所说的病态的键
• 
  
  It's not what Lewis would have expected, maybe;
  这也许并不如路易斯所预期的
• 
  
  we don't have Lewis to talk to,
  我们没法找路易斯来聊聊
• 
  
  so we don't know
  我们没办法知道
• 
  
  what he would've thought about this particular molecule.
  他怎么看到这种特殊的分子