"Even an optimist like Frank Drake estimates that there would be no more than about in the galaxy, which means that the nearest one is likely to be about 1,000 light years away."

VOA: standard.2010.04.16

And if they're a premade salad then it would be even more difficult because you're not constructing it yourself, so it's hard to uses based on these sort of things.

如果那是预制色拉,就更麻烦了,因为那不是你做的,就很难进行统计

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Well, the reason, the way that we can check it is just to see if it's in between our two extreme 1 cases. We know that it has to be more than 1, because even if we had total shielding, 1 we would at least feel is the effective of 1.

好的我们可以检查它的原因和方式是观察,它是否在我们的两种极端案例之间,我们知道它必须大于，因为即使如果我们有完全的屏蔽，我们最小感到的有效值是。

麻省理工公开课 - 化学原理课程节选

Even though it would be easy and it is ripe for the picking, we wanted to be more of an homage to that type of storytelling because I think it has a really powerful message.

VOA: standard.2010.05.27

If the cabin boy had agreed himself, and not under duress, as was added, then it would be all right to take his life to save the rest and even more people signed on to that idea.

如果派克是自己同意的，而不是被迫的，正如这位补充的，那么用他的生命去救其他人就没问题,甚至更多同学赞同这一观点。

耶鲁公开课 - 公正课程节选

Another thing is that most patients - And of those who were tested, only a small number were positive, even though the researchers tested 30 times more people than would normally be tested for HIV.

VOA: standard.2010.07.23

.. You might say, optimists are those-- now in this more chastened version of optimism, optimists say, "Even if immortality would be bad eventually after a million years or ten million years or what have you, " the next chunk of life would've been good for all of us."

可以说，乐观主义者是那些-,对于比较保守的乐观主义者，他们会说，“就算一百万年或一千万年之后“,”永生最终是件坏事，但是“,'现在往后的一大段生活对所有人都是美好的“

耶鲁公开课 - 死亡课程节选