After logging into the course's website, you'll appear on the top left-hand corner as I just did with your actual names that we know exactly who we're working with and then what you can do is raise your hand sort to speak.

登录课程网站之后，你将被显示在,左上角，通过你们的真实名字,我可以知道我到底是在跟谁一起工作,然后你们可以做的是举手来回答问题。

哈佛公开课 - 计算机科学课程节选

One of them is the technique you saw me do with my left hand where I wiggled it a little bit. It's called vibrato.

其中有个技巧,你们看我左手的手法,我略微揉动琴弦引发出颤音

耶鲁公开课 - 聆听音乐课程节选

- On the other hand, we have to ask ourselves-- and this the question that I left us with last time- whether it would really, all things considered, be better to know how much time you had.

另一方面，我们不得不问自己-,这是上一次课我留下来的问题-,从全面考虑，知道你还有多少时间，是不是会更好。

耶鲁公开课 - 死亡课程节选

People have referred to this as a J shaped curve with this little up tick in the left hand side and people--some people have sort of said, well maybe it's not so bad to be overweight because it's not so good to be underweight as well and that's a problem.

人们把这称为J形曲线,最左边有一个向上的弯钩,因此就有人说,也许超重也不一定就是一件坏事,因为体重过轻也不是什么好事,这是个问题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选