像平常一样，那出一张纸来。

As usual, take out a sheet of paper.

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他对纸之外的折叠也颇有研究，例如蛋白质为何如此折叠，或是研究出机器手臂折叠的最佳方式。

His research on folding goes beyond paper, such as trying to figure out why proteins fold the way they do and studying the best way to collapse robotic arms.

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日本已成功研制出一种新型绿色环保机器，这种机器能把普通纸张变成卫生纸。

And in Japan, they've developed a new green machine that turns regular paper into toilet paper.

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Inside the suitcase is a plain piece of white paper and the children were asked to draw the things they think they would need on the trip. Sometimes they get they wouldn't need.

行李箱里面是一张普通的白纸,我要求孩子们,在纸上画出他们认为必要的,旅行用品，有时候他们画出来的并不需要。

麻省理工公开课 - 媒体、教育、市场课程节选

So input is an int called F, print out to the screen or your piece of paper the value of C. Odds are you only need two, maybe three lines of code for this, but the goal ultimately will be try it on your own.

所以输入是一个int类型的F，在你的屏幕上,或你们的纸上打印出C的数值,可能你们需要两行或者三行的代码,但是最终的目标需要你自己独自尝试。

哈佛公开课 - 计算机科学课程节选