So, for example, if we needed to figure out the electron configuration for titanium, 4s2 it would just be argon then 4 s 2, 3d2 and then we would fill in the 3 d 2.

所以举个例子,如果我们需要解出钛的电子构型，它会是Ar然后，然后我们填充。

麻省理工公开课 - 化学原理课程节选

That's an organization of people who sell real estate and they have ad campaigns trying to convince you that home prices are going to double.

AR是房屋销售者成立的组织,他们会发动广告攻势并试图让你相信,房价就要翻倍了

耶鲁公开课 - 金融市场课程节选