The company says it is simply keeping a database of Wi-Fi hotspots and cell phone towers near the user's location.

VOA: special.2011.05.02

So, and of course, you know, keeping entropy as a fixed variable for a system like that is extremely cumbersome.

所以，对这样的系统要求它们的熵保持恒定,和一个非常笨拙做法。

麻省理工公开课 - 热力学与动力学课程节选

Isn't it difficult being a mother and a professor at the same time and keeping a balance between the two?

同时做母亲和教授是不是很困难呢？两者之间取得平衡不容易吧？

教授的梦想 - SpeakingMax英语口语达人

Keeping bones strong with exercise may also help prevent fractures, especially if you wear the right sports protection during activities.

VOA: special.2009.02.04

Fourth, there's generally some arrangement, either for the publication of the treaty, or its deposition, its safe-keeping in some sort of shrine.

第四是一些笼统的安排，对条约的公布，或者废除，然后放在圣坛里，安全保管。

耶鲁公开课 - 旧约导论课程节选

The conference centered on three main problems to getting and keeping girls in school: violence,poverty and poor quality education.

VOA: special.2010.05.20

By keeping women under the household of the men of their original family, the upper-class Romans tried to balance these different households in size and importance.

所以女子保留娘家的家户关系，有助于罗马上层阶级,平衡不同家户的规模及地位。

耶鲁公开课 - 新约课程节选

In real life, Brown is credited with keeping people's spirits up in the lifeboat until they were rescued by another ship,the Carpathia.

VOA: special.2010.03.08

So if we're keeping n the same, we look and what we saw was that size actually decreases as we increase the value of l.

如果我们保持ｎ不变，我们看到随着ｌ值的,增大尺寸变小。

麻省理工公开课 - 化学原理课程节选

Bob Frydenlund says having a round barn means keeping alive part of the history of American farming.

VOA: special.2009.12.29

And along the way I'm keeping track of how many iterations at the end I'll print how many iterations I took, before I return the final guess.

提到的方法去运行,并且我会跟踪到底,进行了多少次迭代,并在最后返回结果之前，显示进行了多少次迭代。

麻省理工公开课 - 计算机科学及编程导论课程节选

Doctor Murray says at least part of the increase is likely the result of better record keeping.

VOA: special.2010.04.14

You add them all up algebraically, keeping track of their sign, and that's the total force.

你再对这些力做代数加法,注意符号,就求出合力了

耶鲁公开课 - 基础物理课程节选

However,the people of the Philippines built a statue to honor him for keeping his promise to return.

VOA: special.2009.05.24

The president was pretty remarkable in keeping in his head the various intelligence streams we are going on, the conspiracies that might be out there.

总统在记录情报方面,非常厉害,他记得不同的情报，还有可能存在的阴谋。

普林斯顿公开课 - 国际座谈会课程节选

So separating the wheat from the chaff means keeping what is valuable and rejecting what is worthless.

VOA: special.2011.02.13

Let's talk about the polio virus vaccine, keeping those things in mind.

以脊髓灰质炎病毒疫苗为例,你们要记住这些知识点

耶鲁公开课 - 生物医学工程探索课程节选

And there are separate rooms for keeping food fresh and cold, and for washing the Vanderbilt's clothes.

VOA: special.2009.11.16

You're essentially doing a diary; you're keeping track of what you're eating.

你们基本上就是写日记,记下所有自己吃的东西

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

He talked about progress in education and other areas, but especially in keeping the country safe.

VOA: special.2009.01.17

The presence of both Mars and Venus suggests you want to box everything into a neat, ordered, structured way but keeping a piece of jade or carnelian close will help you keep in touch with your fun side."

火星和金星的同时出现表明,你想把东西整洁有序地打包好,随身携带一块翡翠或玛瑙,会使你获得愉悦的心情“

耶鲁公开课 - 心理学导论课程节选

Arctic sea ice is important because it throws sunlight back into space, keeping the sea cold.

VOA: special.2009.05.05

So we have dH/dT keeping pressure constant, is du/dT keeping pressure constant.

等于偏U偏T，p恒定加上，偏pv偏T，p恒定。

麻省理工公开课 - 热力学与动力学课程节选

In his opinion,the only real benefit for a private company is lower administrative and record-keeping costs.

VOA: special.2011.01.07

It's actually better to spend a certain amount of time just keeping your body in good condition

其实花一定时间保持身体的良好状态更好，

健康生活 - SpeakingMax英语口语达人

As the new president,Buchanan believed he could solve the slave question by keeping the abolitionists quiet.

VOA: special.2009.05.14

Anything where you're actually keeping track of something like a score that's having a variable that you increment -- plus, plus, or decrement, minus, minus, using the appropriate puzzle piece could certainly be compelling.

你需要保存像分数这样的事物时,你就需要一个变量,它可以自加，++，或者自减,要使用正确的拼图。

哈佛公开课 - 计算机科学课程节选

Keeping a person on a short leash means keeping him or her under close control.

VOA: special.2009.03.29

On the other hand, if you haven't been keeping up, I hope that you won't pass so I can tell you, look, you have to do things differently.

另一方面，如果你没有继续进行，我希望你不能够过，因此我要告诉你的是，看，你做的事分别很大。

麻省理工公开课 - 固态化学导论课程节选

And that right now we can no longer afford to incarcerate, see, more than two million people, and take them not only out of workforce, but keeping them away from information of knowledge of literacy.

现在，我们已没有能力,去限制两亿人口，让他们，脱离劳动力，让他们脱离信息,知识或文化素养。

麻省理工公开课 - 媒体、教育、市场课程节选