Dreams take up about one quarter of our sleeping time.

做梦大约占我们睡眠时间的四分之一。

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The Environmental Teach-In group began to educate people about how to take action locally and spread the news of the event.

VOA: special.2010.04.21

Let's take the first thing first, the radical theology. I'm only able to talk about a small component of Milton's theological daring here.

先来谈激进的神学观点，在这里我只能,谈及弥尔顿神学上的大胆突破的一个小小的组成部分。

耶鲁公开课 - 弥尔顿课程节选

So, let's go ahead and do this and take a look at some of the actual atoms that we can think about and think about them in molecules.

让我们继续来看一看一些我们,能考虑的真实原子,并且考虑它们在分子里面。

麻省理工公开课 - 化学原理课程节选

For example, the images just released of the 68 subjects take up about two terabytes of computer memory, which is two thousand billion bytes, enough to fill several hundred DVDs.

BBC: World's most detailed scans will reveal how brain works

Professor Love said it would take about 100 litres of bacteria to produce a single teaspoon of the fuel.

BBC: E. coli bacteria 'can produce diesel biofuel'

Opinion polls suggest New Democracy will take about a fifth of the vote, with Pasok a few points behind.

CNN: STORY HIGHLIGHTS