But Edie says that stage is coming to an end. "The second step is to try to create work so that people who left Port-au-Prince have money so they can survive."

VOA: standard.2010.03.30

So, what we do as our seventh step is then figure out if we have any extra valence electrons left at all.

那么，第七步要做的是看看,我们还有没有剩下的价电子。

麻省理工公开课 - 化学原理课程节选

And step seven is how many electrons do we have left over that are going to go into lone pairs? How many?

而第七步是我们剩下,多少电子成为孤对电子？多少？

麻省理工公开课 - 化学原理课程节选

Spain ,with its cachet of international stars, tried everything in its bag of tricks, attacking from the right,the left, and down the middle, but the Americans were a step quicker all night.

VOA: standard.2009.06.24

And step six asks us, well, do we have any bonding electrons left?

而第六步问我们，好，我们还有成键电子剩下吗？

麻省理工公开课 - 化学原理课程节选

Step six is thinking about do we have any bonding electrons left?

第六步是想一想我们有多少个成键电子剩下？

麻省理工公开课 - 化学原理课程节选