But it is a very handy way of thinking about, not just how to program, but how to break problems down into nice sized chunks.

但是它确实是一种很方便的思考方式，不仅仅限于编程序,在将程序分解为小部分时也很有用。

麻省理工公开课 - 计算机科学及编程导论课程节选

it was reversible, so you can give people money and take it away, and you could actually scale the amount of money, so it makes a very handy experimental tool.

这个过程是可逆的，这样你可以给人钱，然后拿走，而且你还可以积攒钱，这就让钱成为了一种非常有用的试验工具。

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