The other thing you will find on the website are old homeworks, old exams, all sorts of resources, and they are videotaping this.

另一件你们能在网站上发现的是,以前的作业，以前的试题，各种的资源，他们正在这拍摄。

麻省理工公开课 - 固态化学导论课程节选

By the way, they are videotaping it in a sort of heightened technology this year.

顺便说一下，他们正在拍摄,今年的科技更高超了点。

麻省理工公开课 - 固态化学导论课程节选