There is no one-size-fits-all model of political life but good regimes may come in a variety of forms.

政治生活并没有大小通吃的模式,但好的政体,可能以各种形式存在。

耶鲁公开课 - 政治哲学导论课程节选

But instead in this chemistry course, I will just tell you the solutions to differential equations. And what we can do is we can start with some initial value of r, and here I write r being ten angstroms. That's a good approximation when we're talking about atoms because that's about the size of and atom.

但在这个课里，我会直接，告诉你们微分方程的解,我们可以给距离r一个初始值,我这里把r取10埃,当我们讨论原子时,这是一个很好的近似,因为原子的尺寸。

麻省理工公开课 - 化学原理课程节选