So, you might have noticed that we will have spent about 6 and 1/2 lectures just getting to the point where we have only one electron, so we're only up hydrogen so far.

你们可能已经注意到了,我们已经花了６周半的时间,来仅仅是讲到单电子问题的情形，我们现在只研究氢原子。

麻省理工公开课 - 化学原理课程节选

We've spent the last week and a half or so, maybe a bit more, two weeks, talking about arguments for the existence of the soul.

我们已经花了一周半,也许还多点,两周吧,来讨论证明灵魂存在的论证

耶鲁公开课 - 死亡课程节选

So all of these assumptions are the same assumptions we studied two weeks ago, or two and a half weeks ago, and which you actually studied in your first homework assignment.

所有的这些假设都与,我们两周或两周半前学过的假设一样,也与第一次家庭作业中的假设一样

耶鲁公开课 - 博弈论课程节选

Again, this probably should be cleaned up and in a couple of weeks we'll spend a day or half period trying, to clean it up and make it somewhat more precise.

以上内容还有待梳理,未来两周我们将会花上一天半左右的时间,试着梳理这些内容,使其更加精确

耶鲁公开课 - 死亡课程节选