Australia,one of the world's worst per capita emitters of greenhouse gases, warns that without tough environmental measures the country would lose jobs and key industries, including agriculture and tourism.

VOA: standard.2009.05.03

Now, as obvious a statement as that is in this algorithm, it turns out that is the key to this whole problem being solved correctly without my algorithm looping infinitely.

这是此算法中很明显的一句话，也是正确解决,整个问题的关键,否则此算法就会陷入死循环。

哈佛公开课 - 计算机科学课程节选

It's deliberate that a lot of the examples in lecture are fairly short and bite-size so that you can actually focus on pulling out the key ideas without getting distracted by line and lines of code.

很多的演讲中的例子,是短小的,因此你们可以集中于提取其中的主要思想,而不是被一行行的代码给分心。

哈佛公开课 - 计算机科学课程节选

"The key point here is, can we have reconciliation without accountability,"

VOA: standard.2009.10.23

As we could have same personality without literally same brain, if personality is the key to personal identity, that would still be me.

我们可以拥有同样的人格,不需要同样的大脑,如果人格是人格同一性的关键的话，那个人还是我。

耶鲁公开课 - 死亡课程节选

For South Korean officials, his detention without visiting rights or legal counsel is a key concern, because it reflects upon the overall safety of several hundred corporate managers in the zone.

VOA: standard.2009.06.05

But her reaction Monday to word they are being charged with spying was relatively low-key, with the Secretary telling reporters the charges are without merit and that Iran should free the Americans - two men and a woman - on humanitarian grounds.

VOA: standard.2009.11.09