来自《耶鲁大学开放课程：新生有机化学 第4集 第4集》

• 
  
  Probably the top one.
  可能顶上的那个吧
• 
  
  Why?
  为什么
• 
  
  Okay, there's separation of charge on the bottom. Okay?
  好 底下的有电荷分离 好吧
• 
  
  So there's bad charge separation.
  所以这是坏的电荷分离
• 
  
  The most electronegative atom, oxygen,
  大部分的电负性原子 比如氧啊
• 
  
  in fact has a positive charge not a negative charge. Right?
  实际上是带了正电而不是负电的 对吧
• 
  
  So that's -- not only is there a charge separation,
  所以 这不仅仅是有电荷分离
• 
  
  it's in the wrong direction.
  而且方向也倒了
• 
  
  But they're all octets that we've drawn in both structures.
  不过它们都是八电子稳定结构
• 
  
  All atoms have octets.
  所有原子都是八电子稳定
• 
  
  Now let's try the same trick over here.
  我们再在这里试试这招
• 
  
  We can do it that way. How about that?
  我们既然能那样 这样行不行呢