蒸汽动力不仅可以用于纺织棉花和轧铁；新世纪早期，蒸汽机的使用同样大大提高了造纸的效率，蒸汽动力一天所生产的纸张总量是单个工人一天生产纸张总量的10倍。

Steam power did not merely spin cotton and roll iron; early in the new century, it also multiplied ten times over the amount of paper that a single worker could produce in a day.

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乔布斯的职业生涯可以被看作是一场持续不断的追求之旅，追求着那些（提高创新发生的）概率，这不仅为了他自己，也为了他所领导的公司。

Mr. Jobs's career can be viewed as a consistent pursuit of improving those odds, both for himself and the companies he has led.

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它不仅仅是一种标志，更是我们可以追溯到祖先的根源，是将我们与同族其他成员联系在一起的纽带，是大多数人希望为之而活的尊严。

Rather than merely a sign, it is the root from which we can trace back to our ancestor, the tie that helps bind us to other members of the same clan, the dignity most people hope to live for.

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Since we're talking about wave functions, since we're talking about the properties of waves, we don't only have constructive interference, we can also imagine a case where we would have destructive interference.

因为我们讨论的是波函数，因为我们讨论的是波的性质，我们不仅有相长干涉，我们也可以想象在,某种情况下会有相消干涉。

麻省理工公开课 - 化学原理课程节选

All right. So let's look at some of these wave functions and make sure that we know how to name all of them in terms of orbitals and not just in terms of their numbers.

好，让我们来看一下,这些波函数,并确定我们都知道,怎么用轨道,而不仅是量子数来命名它们,一旦我们可以命名它们。

麻省理工公开课 - 化学原理课程节选

That has to count as the toughest day, not only in my career, but also in the history of that particular presidency.

那可以算得上是最艰难的一天，不仅在我的职业生涯里，在总统任期的历史中,也是最艰难的一天吧。

普林斯顿公开课 - 国际座谈会课程节选