当科学家们第一次将古典克雷莫纳小提琴的木材与现代小提琴的木材进行对比分析时，他们计算了平均密度，并没有发现区别。

When scientists first analyzed the wood of vintage Cremonese violins in compared with the modern violin wood, they calculated the average density and found no difference.

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之后他们计算了铱层上的物种。

Then they counted the species above it.

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表达式的问题是他们计算比大多数人期望更频繁。

The problem with expressions is that they are evaluated more frequently than most people expect.

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Third thing we want you to do, is to understand the fundamental both capabilities and limitations of computations, and the costs associated with them.

我们希望你们做的第三件事儿，就是了解,计算的基本能力，和局限以及他们的代价。

麻省理工公开课 - 计算机科学及编程导论课程节选

People tend to think, because the computer says it's so, it must be so. That the computer is- speaks for God. And therefore it's infallible.

那么一定就是这么回事了,他们认为计算机代表着神一样的存在-,因此是不可能犯错的。

麻省理工公开课 - 计算机科学及编程导论课程节选

So really what we'll probably do is instead either give you the wavelength or the frequency and you'll go ahead and calculate the energy from there.

所以实际上我们可能的做法是,给你波长或者频率,然后你可以通过他们计算得到能量。

麻省理工公开课 - 化学原理课程节选