Your committee is concerned that in not one single case of a trial that has taken place to date, have they actually been charged with a terrorist act.

VOA: standard.2009.04.09

But now it's going to make more sense because in that case we were just talking about single electron atoms, and now we're talking about a case where we actually can see shielding.

但是现在能讲得通了,因为在那个情况中我们仅仅是现在我们讨论的是,讨论单电子原子，看到屏蔽的案例,我们能看到屏蔽。

麻省理工公开课 - 化学原理课程节选

And the change was, that in this case, if I'm doing a single search, I've got a choice.

这个改变是，在这种情况下，如果我要做单一检索，我就面临一个选择。

麻省理工公开课 - 计算机科学及编程导论课程节选