Now, that's actually a difficult question to ask-- to answer for a child, but I tried my best to give him an answer.

向一个孩子解释这个问题其实挺困难的，但我还是尽力给了他一个答案。

耶鲁公开课 - 心理学导论课程节选

So we have to ask now, now that my claim is, you can ask me any question you want about this particle and I can answer you.

现在我们要问,我的观点是,你可以问我任何关于,这个质点的问题,我都可以回答你们

耶鲁公开课 - 基础物理课程节选