But the things we were trying to stress were that it's an important design decision when you are coming up with a piece of code, as to what kind of efficiency your code has.

但是我们这里要强调的是,当你写代码的时候,决定你的代码的效率的很重要的事情，就是你的设计决定。

麻省理工公开课 - 计算机科学及编程导论课程节选

I like" is a useful pattern for firming that yes, you want to do something.

I like” 是一个很有用的句型，它可以用来强调你想要做的事情。

I like课堂 - SpeakingMax英语口语达人

That's why there's a lot of emphasis on sharpening your teeth by doing this class of problems.

这就是为什么强调要通过解决这些问题,来提高你的能力

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