You don't have to try to get the change of law You don't have to get the supreme court to change its mind. All you have to do is to get out your credit card and go online and it's done.

不必试图修改法律,也不必游说最高法院,做出什么改变，你需要做的,只是掏出你的信用卡，登陆网站，然后一切搞定。

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But it's not necessarily the other way round

但这也不需要反过来改变什么，

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You certainly shouldn't change anything about the function.

你当然也不需要改变函数的什么东西。

哈佛公开课 - 计算机科学课程节选