Some property owners in southern Arizona, look out over Mexico from their back porches.

VOA: standard.2010.06.07

Please be on the look out for emails from section leaders with ; study guides for sections which will be meeting this week; you'll have a lot of fun with the creation stories.

请大家留意助教的邮件,上面会有，对下堂课的一些指导;,你会从阅读创世纪的故事中，得到很大乐趣。

耶鲁公开课 - 旧约导论课程节选

But yet when you look back from the nineteenth century, these factors do count in explaining how countries turn out to be the way they are.

不过当你从十九世纪开始回顾历史,这些因素的确能解释,国家是如何转变成现在这样的

耶鲁公开课 - 欧洲文明课程节选

That was Cartesian space. When I plot r as a distance out from the nucleus that is sort of our simple-minded planetary model. Now let's look at energy.

笛卡尔坐标系，当我用r表示,离原子核的距离时，那只是我们头脑中简单的,类似行星的模型，现在我们看一下能量问题。

麻省理工公开课 - 固态化学导论课程节选

The other thing that I want you to notice, is if you look at the most probable radius, for the 2 s orbital it's actually out further away from the nucleus than it is for the 2 p orbital.

另外一个你们要注意的地方就是，如果你们看它的最可能半径，2s轨道比2p轨道的,要更加远离原子核。

麻省理工公开课 - 化学原理课程节选