First, to measure what a whole population eats, how in the world could you know that?

首先,去测量人群总体吃什么,到底该如何做

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I have to have a whole number of wavelengths to get around the circumference.

我必须要有个关于波长的总体数字,测量周长。

麻省理工公开课 - 固态化学导论课程节选