OK. So to do this, we need a little more abstract way of talking about efficiency, and so, the question is, how do we think about efficiency? Typically there's two things we want to measure.

好，为了达到这个目的,我们需要用一种有点，抽象的方式去讨论效率，这衍生出来,一个问题，我们该怎么去认识效率？,主要来说我们有两个要量化的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

and the Euro is a currency that helps to do that.

欧元是一种货币，可以帮助其达到这个目的。

欧洲中的英国 - SpeakingMax英语口语达人

What we're talking about is literariness--that is to say, certain devices that we can identify that perform a certain function -and maybe out of the identification of these devices, to evolve a theory that's more widespread.

我们谈的是文学性，是一种我们能够认知并运用来达到一定目的的策略,我们需要进一步发展这个策略，使这个理论进化并传播。

耶鲁公开课 - 文学理论导论课程节选