You don't have to worry about getting tested on this material, at least not on my life story.

无需担心我会考你们这些,最起码不会考你们我的人生故事。

麻省理工公开课 - 固态化学导论课程节选

So, keep that in mind when we're talking about atomic radius, I'm not suddenly changing my story and saying, yes, we do have a distinct radius.

因此，当我们讨论原子半径的时候要时刻记住这一点，我并不是在突然改变自己的说法，说是的，我们的确有一个准确的半径。

麻省理工公开课 - 化学原理课程节选