根据美国国家科学基金会的调查，美国颁发的博士学位数字已经连续6年上升，达到2008年创纪录48802个，其中约三成的博士持有临时签证，这和1998年的23.3％比例相比有所上升。

One- third of these degrees (33.1 %) went to temporary visa holders, up from 23.3% in 1998.

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把我们的生活译成和演奏成一首流动的原声音乐，只是这无意识大脑真实潜力的一个小例子。

Tuning into and playing the running soundtrack of our lives is only a small example of our unconscious mind's true potential.

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如今，这她不仅可以在德国南部乡间“千里走单骑”，还能骑牛跳跃啤酒箱和彩绘圆木堆就成的障碍物。

Now not only do the two regularly go on long rides through the southern German countryside, they do jumps over hurdles of beer crates and painted logs.

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This is Yeats rather later, still dressed, however, in his study as an aesthete and dandy.

这是叶芝在晚年时在书房里，打扮成美学家和花花公子的原因。

耶鲁公开课 - 现代诗歌课程节选

And to do this we're going to introduce valence bond theory, and the idea of hybridization of orbitals.

在这之前我们要引入价电子成键理论，和杂化轨道的概念。

麻省理工公开课 - 化学原理课程节选

Now take these two fingers-- the middle finger and the thumb-- and as much as possible, from that 90 degree angle, create a circle.

再让这两个手指-,中指和姆指-,尽可能保持直角时围成一个圆圈。

哈佛公开课 - 幸福课课程节选