来自《耶鲁大学开放课程：新生有机化学 第2集 第2集》
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What's the loop?这个环状结构是什么 -
Pardon me?再说一次呢 -
Someone said --hold your hand up so that people can hear you.举手发言吧 -
Student: A lone pair on nitrogen.氮原子上的一对孤对电子 -
Prof: A lone pair on nitrogen -- wrong.孤对电子 回答错误 -
It looks like the lone pair on nitrogen看起来挺像孤对电子 -
but the lone pair didn't come along that soon.但我们还讲不到那儿去 -
What the loop means, if you look at it in the context,结合这张幻灯来看 这个环是什么呢 -
is what makes NH3 reactive?NH3就是靠这个发生反应的 -
In this term, this is what they wrote:他们在这里是这样解释的 -
"It may reasonably be assumed我们可以做个合理的推测 -
that the partial dissociation即价键的部分解离