If the question of time is not explicitly brought up, then you should know that you have to use this formula.

如果时间的问题并没有明确提出,那你应该知道,必须要用这个式子

耶鲁公开课 - 基础物理课程节选

They would tell these women, you know, if you buy life insurance on your husband, then should anything happen your husband can love and protect you from beyond the grave.

他们会告诉这些女人,如果你为你的丈夫购买了寿险,那么万一有意外发生,你丈夫的在天之灵仍会保佑你渡过难关

耶鲁公开课 - 金融市场课程节选

If that's right, then maybe the conclusion should be "Well, you know, yeah, the Cartesian thought experiment shows that there could be a world in which there are minds that are not identical to bodies.

如果事实如此,那么结论该是,怎么说呢,笛卡尔的思想实验表明,可能存在某个世界,其中存在着,不同于身体的心灵

耶鲁公开课 - 死亡课程节选

That means, when I take two derivatives, I want to get a, then you should know enough calculus to know it has to be something like at^, and half comes from taking two derivatives.

也就是说,当我想求二阶导时,得到了a,你应该有足够的微积分知识,才能知道必须有类似at^的项,而这个1/2则是因为求了两次导数

耶鲁公开课 - 基础物理课程节选