He is from Jamaica,1.96 meters tall, has a charismatic smile and celebrated his 23rd birthday Friday.

VOA: standard.2009.08.21

A remember about the Periodic Table test which will be added next week on the 23rd.

我要提醒你们,下周23号将会有个周期表测试。

麻省理工公开课 - 固态化学导论课程节选

What do you think the error is going to be by failing to recognize that at the end of 6 times 10 to the 23rd I have over-counted some energy?

你们可能会发现，这将会有误差,在6乘以10的23次方的末端,我多余地引入了一些能量？

麻省理工公开课 - 固态化学导论课程节选

It will be on the 23rd on a Thursday, ten minutes.

将在23号周四举行，十分钟左右。

麻省理工公开课 - 固态化学导论课程节选