And the reason that they're the least sheilded is because they can get closest to the nucleus, so we can think of them as not getting blocked by a bunch of other electron, because there's some probability that they can actually work their way all the way in to the nucleus.

它们最不容易被屏蔽的原因,是因为他们可以更加接近原子，所以我们可以认为它们,最不容易被其它原子阻挡住，因为它们有一定的概率,离原子核非常近。

麻省理工公开课 - 化学原理课程节选

What they cared about-- because the Roman Republic by this time was basically a bunch of very important households, wealthy men and their households, and they were the members of the Senate, they were the knight class, they were the people who ran Rome.

他们在乎的是。。。因为当时的罗马共和国,实际上就是一群举足轻重的家户，富有男子及其家户所组成，他们是元老院成员，是骑士阶级，罗马的统治者。

耶鲁公开课 - 新约课程节选