So, this is a time course here, this scale is in days.

这是时间,这是在几天之内人体的变化

耶鲁公开课 - 生物医学工程探索课程节选

So this is our little Google calendar that we embed in the course's website, and this is the number of office hours we had just in the next couple of days alone.

这是我们的小google日历，我们把它嵌入在,课程网站中，这是我们,接下来几天的办公时间。

哈佛公开课 - 计算机科学课程节选