Charity Navigator says the most efficient charities spend at least seventy-five percent of their budget on their programs and services.

VOA: special.2009.11.02

One of the things we want to help you do is identify the different classes of algorithms, what their costs are, and how you can map problems into the most efficient class to do the computation.

我们想要教会你们的事情之一就是,学会辨别不同种类的算法，它们的代价是怎么样的，以及怎么样把问题映射到,最有效的算法种类中去做计算。

麻省理工公开课 - 计算机科学及编程导论课程节选

so that you can solve it in the best and most efficient manner.

这样便可以用最好，最有效的方式解决问题。

有印象的教授 - SpeakingMax英语口语达人

What is the most efficient way to store a million 32-bit integers?

存储一百万个32比特整数的,最有效的方法是什么？

哈佛公开课 - 计算机科学课程节选

Because that's the temperature at which many of the molecules in our bodies operate at their most efficient, and enzymes is the best example of that.

因为在正常体温下,体内许多分子活性最高,酶就是其中最好的例子

耶鲁公开课 - 生物医学工程探索课程节选

What's now the most efficient use of people's time, like how can people maybe be working on stuff not serially but I didn't say someone's working on launching a high school product on the photos and someone else is working on the thing every launch next to each, you know.

才能达到最高的工作效率，也许可以摒弃,连续工作的模式,我并不是说,他们是在开发一个小儿科的产品,有人负责建立相册,有人负责,下周要开启的项目。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

What's, like what's the most efficient use of people?

怎么样才能最大限度地发挥他们的聪明才智？

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

So this is not the most efficient way of representing information.

其实，这不是最有效的,信息表示方式。

哈佛公开课 - 计算机科学课程节选

Now, the other nice thing about viruses is not only are they very efficient but most viruses are specific for certain kinds of cells.

病毒的另一个绝妙之处在于,它们不仅高效,对特定细胞的特异性也很好

耶鲁公开课 - 生物医学工程探索课程节选