And so you'll learn over time both by seeing and by doing that there are generally some good ways, some okay ways, and some bad ways of actually writing code.

久而久之，你们将通过看和实践来学习到,这里通常有很好的方法，还行的方法，很烂的方法来编写代码。

哈佛公开课 - 计算机科学课程节选

because you have to do... like, you learn a lot of stuff by doing that too,

因为你必须……做那个你也要学很多东西。

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