Lectures, lectures are Monday, Wednesday, Friday at 11:00, or Monday, Wednesday,Friday at 1:00.

课程是在周一，周三，和周五的11点，或者周一周三和周五的1点。

麻省理工公开课 - 固态化学导论课程节选

There is also a lecture Monday, Wednesday and Friday at 1:00.

也有周一，周三和周五的1点。

麻省理工公开课 - 固态化学导论课程节选

We knew from Friday, when we talked about energy, that ground state was that n equals 1 value, that was the lowest energy, that was the most stable place for the electron.

我们上周五知道了，在讨论能量的时候，基态指，n等于1的态，它能量最低，是，最稳定的态。

麻省理工公开课 - 化学原理课程节选