And how the systems that we have designed for the house and we've used for the house how efficient they are and how little energy they use."

VOA: special.2009.10.27

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

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

In contrast,a light bulb has much more impact in the use phase, where it's using the energy, and where you can reduce that with more efficient lighting technologies,"

VOA: standard.2009.03.30

Now we need to think about a model of the stock market And the model we're going to use is based on what's called the Efficient Market Hypothesis.

现在需要想一想一个股市的模型是怎样的,我们要用的模型是,基于有效率市场假说的。

麻省理工公开课 - 计算机科学及编程导论课程节选

The hotels use energy-saving lights and appliances, buy local wine and produce for their restaurants, compost organic waste, donate old linens and towels to charities, and use an energy-efficient, "green" local laundry.

VOA: standard.2009.03.30