I've found some people really have to come to the first and second row because they claim that if they don't hear me they cannot really go to sleep.

我发现有些人必须得在第一,二排睡觉,因为他们说如果听不到我的声音,他们就无法入睡

耶鲁公开课 - 基础物理课程节选

So when we say, he says invisible things can't be destroyed, he means the things that you can't see or touch or hear or feel, whatever it is, see, touch, smell, taste.

所以当我们说，他说无形的东西不可毁灭，他的意思是你看不见摸不着,听不见也感觉不到的东西，看，摸，问，尝所有这些。

耶鲁公开课 - 死亡课程节选

So even that wasn't loud enough okay, so we we really need to get people-- That was very clear, very nice, but we need people to stand up and shout, or these people at the back can't hear. So your name is?

这样声音还是太小,所以我希望,之前的同学的解释清晰正确,但以后请大家站起来大声点说,否则后面的听不到,你的名字是

耶鲁公开课 - 博弈论课程节选

And the fact that we're always facing some risk of death recedes into the background in the way that most of us don't hear background noise-- that what jumping out of an airplane does for you is it spikes the risk of death.

我们一直面对的某些死亡的风险,这种情况下变成了背景声音,因为我们大部分人都听不到背景的噪声-,而跳下飞机带给你的,是死亡的风险上升。

耶鲁公开课 - 死亡课程节选