Les Paul is best known for creating one of the first solid-body electric guitars and the eight-track recording device.

VOA: special.2009.09.27

What they usually do is they take the underperforming fund and they merge it with one that has a better track record.

更常见的做法是把运作不佳的基金,合并到另一只表现良好的基金中去

耶鲁公开课 - 金融市场课程节选

One of the great discoveries in television and movies was the invention of the laugh track.

电视界和电影界一个很有趣的发现就是,发明了笑声音轨。

耶鲁公开课 - 心理学导论课程节选

reached Number One on the Country chart. Although he didn't write the track, he says, "This song identifies who I am.

VOA: standard.2010.04.09

Your steering wheel works, so you can turn the trolley car, if you want to, onto the side track killing the one but sparing the five.

而你的方向盘还没坏，只要你想，就可以把电车转到侧轨上去,牺牲一人挽救五人性命。

耶鲁公开课 - 公正课程节选

The track was the second single from Jason's Wide Open album to reach Number One during the past year.

VOA: standard.2009.12.22

But the guy working, the one on the track off to the side, he didn't choose to sacrifice his life any more than the fat man did, did he?

但在侧轨上施工的那名工人，他并不比那个胖子，更愿意牺牲自我，不是吗？

耶鲁公开课 - 公正课程节选

But she noted that the United States and its partners in the P-Five-Plus-One group the five permanent U.N.Security Council member countries and Germany are pursuing a two-track strategy of incentives for Iranian nuclear cooperation and "consequences" if it fails to fulfill international nuclear obligations.

VOA: standard.2009.11.09

And so you feel helpless until you notice that there is, off to the right, a side track and at the end of that track, there is one worker working on the track.

你极为无助,直到你发现，在轨道的右侧，有一条侧轨,而在侧轨的尽头，只有一名工人在那施工。

耶鲁公开课 - 公正课程节选