That's because the ideas of physics don't fall into 75-minute segments and sometimes they spill over a little bit.

因为物理的知识不是死板的75分钟课程,所以我会有时候做一些微调

耶鲁公开课 - 基础物理课程节选

In this case, death from heart disease and what you see here, and I'll tell you what relative risk is in just a minute, but this is basically risk for disease over on this axis and here its weight.

在这幅图里是心脏病致死的,我会简短地介绍一下相对风险的定义,Y轴表示患病风险,X轴表示体重

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选