If we take nitrogen, we've got N2, and we've got one, two, three, four, five.

比如说氮，我们得到了氮气，我们有一个，两个，三个，四个，五个。

麻省理工公开课 - 固态化学导论课程节选

So we have 4 plus 5, but we're actually not done yet, because it's c n minus, so if we have minus, we actually have an extra electron in our molecule.

我们有四个加上五个，但是我们实际上还没做完，因为这是个负离子，所以如果我们有这个负号，那么我们的分子实际上还有一个额外的电子。

麻省理工公开课 - 化学原理课程节选

The good news is the elements in any one spot in a hash table are likely to be a small number, three, four, five.

好的一点是在哈希表中,任何一个存贮点上的元素数据是很小的,三个，四个，五个。

麻省理工公开课 - 计算机科学及编程导论课程节选

There's two, three hands going up, four, five hands going up.

两个,三个人举手了,四个,五个

耶鲁公开课 - 博弈论课程节选