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

And I'm not expecting you to do that calculation here, because it involves the calculator, among maybe a piece of paper as well.

我并不期望你们去做这个计算,因为它需要一个计算器，也许还需要一张纸。

麻省理工公开课 - 化学原理课程节选

Now, admittedly they've got this little piece of cloth that gives them a decent chance of not killing themselves when they jump out of airplanes.

现在，必须承认他们有这么小小的一片布,给了他们一个当他们跳下飞机时,不会死的足够的可能性。

耶鲁公开课 - 死亡课程节选

Well, it's not memorized as we think of it and you may have had music lessons along the way and your teacher and your mother said "Go memorize your piece." It's not memorized like that.

这完全不是想我们猜想的那样是靠死记硬背的,也许你上音乐课的时候,你的老师或和你妈妈会说,记下这一段,而这段音乐不是像那样靠死记硬背的

耶鲁公开课 - 聆听音乐课程节选

This then leads to a very different discussion because A play is not a piece of text. A play is a living thing That is meant to be performed by actors in a particular setting. Different actors with different directors interpret the words of Shakespeare to the best. We can construct those words differently.

这引起一场很不同的讨论,因为一部戏剧不是一篇文章，而是活物,是要被演员在特定的场景下,表演出来的，不同的演员,和导演尽可能去诠释莎士比亚的文字,我们可以以不同方式建构这些文字。

麻省理工公开课 - 媒体、教育、市场课程节选

So it is a very thin and quick move, one on a second, by which I mean that one electrode, one set of neurons is the a very important piece of the puzzle, but not all that you need.

所以说，这是一个非常细微而迅速的动作，一秒钟一次，我是说一个电极，一组电极对于去猜整个谜很重要，但是你需要的远不止这些。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Even those of you who've taken AP computer science or something similar perhaps recall that even just getting a piece of input from the user is ridiculously not obvious.

你们中上了AP计算机科学这门课,或者类似的课程的人可能还记得,即使只是从用户那里得到一个输入,也相当麻烦。

哈佛公开课 - 计算机科学课程节选