"I have asked Secretary Geithner to use that leverage and pursue every single legal avenue to block these bonuses and make the American taxpayers whole."

VOA: standard.2009.03.16

It gets really kind of trippy if you wanna output a backslash, \ you can't just use the backslash, \\ you need to use backslash backslash because otherwise a single backslash is confused with the so called escape character.

如果你想输出一个反斜杠，估计又得迷糊了，实际上，你不能直接用，而是要,否则一个\可能会被误认为,是转义字符。

哈佛公开课 - 计算机科学课程节选

Well, I mean the definite article "the", you use when there's only a single specific item that you're talking about.

当你谈论一个特定的项目时，就用定冠词“the” 。

经常犯的失误 - SpeakingMax英语口语达人

It has worked closely with the United States,Australia and its Southeast Asian neighbors to contain militant Islamists who wanted to use violence to establish a single Muslim nation across much of the region.

VOA: standard.2010.03.24

We can already use that in terms of single ions to think about a really complex biological issue, which is to talk about ion channels.

我们已经能够仅仅凭借这个关于单个离子的原理,来讨论一个非常复杂的生物问题了，我们要讨论的就是离子通道。

麻省理工公开课 - 化学原理课程节选

Well, we can't guarantee with UV light we'll have enough energy to eject every single electron, so that's why when we use x-rays, they're higher energy, you can pretty much be guaranteed we're going to eject all of those electrons there.

好，我们不能保证紫外光有足够的能量,激发出每一个电子，所以我们要使用，X，射线，它的能量更高，你可以非常确定,我们可以激发出其中所有的电子。

麻省理工公开课 - 化学原理课程节选