The Second Brother, you'll remember, had taken what I take to be the perfectly reasonable position, the cautious position, that the Lady is in danger - that she's a sitting duck, in fact, out there in the dangerous forest.

戏中的弟弟，你们记得，采取了,我认为非常合理的立场，小心谨慎的立场，他认为那位少女处于危险的境地,-她只身于危险的丛林之中，极易受到伤害。

耶鲁公开课 - 弥尔顿课程节选

You held, many say is the second most powerful position in America.

许多人说你的职位,是美国第二有权利的职位。

普林斯顿公开课 - 国际座谈会课程节选

Once you can take one derivative, you can take any number of derivatives and the derivative of the velocity is called the acceleration, and we write it as the second derivative of position.

只要你能求一阶导数,你就能求任意阶的导数,速度的导数被称为"加速度",我们把它写成位移的二阶导数

耶鲁公开课 - 基础物理课程节选

What it means is if you'd release a rock at that location one second before with a certain speed that we can calculate, it would've ended up here with precisely the position and velocity it had at the beginning of our experiment.

它的意义在于,若在该处以特定速度抛出一个物体,这个速度可通过计算得到,一秒之后,物体会运动至我们设定的起点,并且速度为我们设定的初速度

耶鲁公开课 - 基础物理课程节选