I really admire the efficiency of your secretaries.

我真佩服你们秘书的办事效率。

youdao

youdao

Another important factor is the technical efficiency of a country's people.

另一个重要因素是一个国家人民的技术效率。

youdao

Some manufacturers are pushing cars to new levels of fuel efficiency.

VOA: special.2010.11.17

And then we're going to turn to the question of efficiency. How do we measure efficiency of algorithms? Which is going to be a really important thing that we want to deal with, and we'll start it today, it's undoubtedly going to take us a couple more lectures to finish it off.

然后我们会回头继续讨论效率问题,我们如何计算算法的效率？,我们处理这些问题的时候,最重要的事情是什么？,我们今天要去讨论这个问题，毫无疑问我们要用,挺多节课来学习这个。

麻省理工公开课 - 计算机科学及编程导论课程节选

and how that relates to the efficiency of the market.

还有这个与市场效率有什么关系。

有趣的研究课题 - SpeakingMax英语口语达人

My recommendation is to spend half your money improving the energy efficiency of your house.

FORBES: With $2,000 To Spend, What's The Most Effective Way To Reduce One's Carbon Footprint?

He raises doubts about the efficiency of human power and questioned its economic viability.

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And it offers free improvements to increase the energy efficiency of your home, if you qualify.

BBC: Battling bills - what help is there?