I want to just go over the requirements of the course that really are required, not the optional piece, just so that you understand what my purpose is pedagogically.

我只想跟大家回顾一下,这门课程的必须要求，并非可以自由选择的,这样你们会理解我的目的何在。

耶鲁公开课 - 1945年后的美国小说课程节选

When you walk through that door, it's an act of free will.

当你走进这个门的时候，这是自由意志的选择。

麻省理工公开课 - 固态化学导论课程节选

One could similarly have a course devoted to the problem of free will.

我们系同样还开设有一门课,专门讨论自由意志问题

耶鲁公开课 - 死亡课程节选

again carefully because I'm free to take anything from Key Terms and Key Concepts from the chapters that were assigned for this part of the course.

法博齐等人的作品，因为我将会从,本门课指定的章节中自由地引用,重要的术语和概念。

耶鲁公开课 - 金融市场课程节选

All right, turn them off. If they have to make noise as you turn them off, turn them off, but that's it. So, when you walk through that door, it's an act of free will.

好了，把它们关掉，如果一定要发出声音,当关机的时候，也要关机，就这样，当你走进那扇门，这是自由意志的选择。

麻省理工公开课 - 固态化学导论课程节选