And if you go back to here and click on Archive Notes, it is the fourth button down that will take you to something that looks like this.

如果你们回到这来，点击存档笔记，是倒数第四个,你们会看到像这样的情况。

麻省理工公开课 - 固态化学导论课程节选

And then of course, the point of the skit is he presses the down button on the elevator and a minute and a half goes by while he's waiting for the elevator to come.

当然，这个滑稽短剧的笑点是,他按下了电梯按钮,花了一分半,等电梯。

耶鲁公开课 - 死亡课程节选