This is a calculus-based class and I expect everyone to know at least the rudiments of differential calculus.

这门课需要微积分的数学基础,我觉得每个人至少应该知道,一些微积分的基础知识

耶鲁公开课 - 基础物理课程节选

But I would like to give you some of the rudiments about nutrition, especially about how we measure nutrition and then what it means for health, and we'll talk more about that in the next class.

但我很乐意教给你们一些营养学基础知识,尤其是如何评估营养,及其对健康的意义之所在,下一堂课我们会更加深入地探讨

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选