There are some exceptions, which we'll get to later, but the only a big exception here is with hydrogen, which has a special stability that's associated with two electrons.

但也有一些例外我们将以后再讲，但这里只有一个较大的例外，氢，它的稳定性比较特殊，只需要两个电子。

麻省理工公开课 - 化学原理课程节选

The idea was you have to do something that has lot more job securities, something that will bring in a steady income.

作为一个穆斯林，你就应该,做一份比较有保障，收入稳定的工作。

普林斯顿公开课 - 人性课程节选