Alaskans accepted it, and on January third, nineteen fifty-nine, President Eisenhower declared Alaska the forty-ninth state.

VOA: special.2009.03.02

Often, for a particular state change, it is easy to calculate two of these, but not the third.

对于一些特定的状态变化，它们中的两个很好计算，但是第三个往往不容易计算。

麻省理工公开课 - 热力学与动力学课程节选

The polis is not merely a city state in the same way as,let us say, the Mesopotamian city states of the third millennium B.C. Were.

那就是城邦不仅仅是一座城市,并不是像,我们说的公元前三千年的,美索不达米亚的城市

耶鲁公开课 - 古希腊历史简介课程节选

So the key word here is that we asked you to identify the third excited state. So, what white is n equal 4 Ok to for the third excited state? 4 OK.

这里的关键的地方是我,要你们找到第三激发态,第三激发态的n等于多少？

麻省理工公开课 - 化学原理课程节选

So, the third excited state, is n equal to 4, because n equals 2 is first excited, 3 is second excited, 4 is third excited state.

因为n等于2是第一激发态,等于3是第二激发态。

麻省理工公开课 - 化学原理课程节选