All right, so let's think of a more complicated example of having a double bond, and maybe a more interesting example, and this is talking about benzene.
好了，让我们来看关于双键的，一个更复杂的例子，也许是更有趣的例子，我们要讨论苯环。
2
So we're talking about a reactor that has a break in the primary cooling system and what is a double ended guillotine break?
我们谈论的是，一个反应堆出现了破裂，在主系统的冷却系统，还有两端，闸床的破裂是什么？
3
He did a sort of double take and said, “Brenda, next time you are talking bad about someone, make sure the three-way calling is disconnected.”