They're very efficient." Not far from Taylor Glacier, researchers for the American space Agency are using the icy Lake Bonney to test an underwater robot vehicle.

VOA: special.2009.06.03

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

We had a very efficient process that was run by a scheduler.

我们有个很高效的程序,那是有一个日程员负责的。

普林斯顿公开课 - 国际座谈会课程节选

But new tests years later found that it was not very efficient.

VOA: special.2010.02.01

So it's a very efficient way of securing energy.

因此这是一个高效的保存能量的方法

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So to just preface what we're going to do next time, what would happen if I wanted to do sort, and rather than in sorting the entire list at once, I broke it into pieces, and sorted the pieces, and then just figured out a very efficient way to bring those two pieces and merge them back together again?

所以为了引导下一次,我们要讲的内容,如果我想做排序,而且不是一次吧整个列表排完,会发生什么，我把它拆成小的列表,然后把各个小列表排序,接着用高效的方法再把小的列表？

麻省理工公开课 - 计算机科学及编程导论课程节选

There are other vectors that are very efficient at getting DNA into cells.

但是存在某些其它载体,能易如反掌地将DNA导入细胞

耶鲁公开课 - 生物医学工程探索课程节选

There are a lot of people that can do work, and if you have a more efficient way to manage a large crowd of engineers, you can be very competitive in the technology world.

人们的工作能力毋庸置疑，如果你能够有效管理,一个大的团队，那么在这个领域，你的竞争力就提升了。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选