And if we go on to step three where we figure out how many we would need for full octets, it's just going to be 2 times 8, so we have 16.

而如果我们继续到第三步,判断一下填满所有“八隅体“需要多少个价电子，结果应该就是二乘以八，也就是十六个。

麻省理工公开课 - 化学原理课程节选

And we would need, to have to look at it, and it's going to be very tricky, by the way, as to what the right answer is.

我们需要去看一看，顺便说下，正确答案可能很棘手。

麻省理工公开课 - 计算机科学及编程导论课程节选