He said, "We continue to expect economic activity to bottom out, then to turn up later this year."

VOA: special.2009.05.08

So, that process happens fast but you also need this neurotransmitter release and activation to happen fast so that you can have rapid activity.

所以 电传递过程很快,但你仍需要神经递质的,快速释放和快速激活,以便使你快速活跃起来

耶鲁公开课 - 生物医学工程探索课程节选

A new addition to this as well is the fact that you see the figure climbing the stairs, which connotes the importance of physical activity.

这里还有一个新增加的东西,那就是你可以看到一个在爬楼梯的人影,这暗示着体育活动的重要性

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This week, we will tell about a study linking activity on the sun to changes in Earth's climate.

VOA: special.2009.09.29

That's Dean. In this fantasy about the indigenous girls, what you see is a commitment to language and the activity of selling, buying and selling, entirely entwined with one another.

这就是迪安对那些本地女孩的幻想，你们从这语言中看到的是一个买卖东西，和相互眼神交汇的行为。

耶鲁公开课 - 1945年后的美国小说课程节选

We attended this year's United States Air Guitar Championships in Washington,D.C.to learn more about this unusual activity.

VOA: special.2009.08.14

In fact though, the children who you reward later on think that this activity has less value and they are less likely to do it when there's no reward present.

但事实上，拿到奖励的孩子会想,这个活动的价值变低了，如果没有奖励,他们就不太可能会再做。

耶鲁公开课 - 心理学导论课程节选

Central bank policymakers said they expect a slow recovery in economic activity to begin later this year.

VOA: special.2009.01.31

And here are the words of his that I want to leave you with today from section : 31d of the Apology. Socrates writes "This is what opposes my political activity.

今天的总结要引用他讲的话,摘自《苏格拉底自辩篇》31d段落,苏格拉底写道,“这违背了我的政治活动。

耶鲁公开课 - 政治哲学导论课程节选

"By going to phase six, what this would mean is that the spread of the virus is continued and that activity has become established in at least two regions of the world.

VOA: special.2009.06.10

By the way, if we go back to this, another big part of disease--chronic disease that's related to diet, is the physical activity part of the equation.

顺便一说 我们回过去看,大多数疾病,与饮食有关的慢性疾病,与一个关于肢体运动的方程式有关

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This activity is no charity but a viable business, servicing people who do not have access to electricity.

VOA: standard.2010.02.24

Here are humans who had to walk long distances potentially to find the food, kill the food at great risk to themselves; inspiring a cascade of physiological effects that have to do with fear and arousal and things like that, not to mention all the calories one would burn doing this kind of activity.

这些人可能需要走很远的路,去寻找食物,冒着巨大危险,杀死猎物,人们耗费能量以激活一系列生理效应,用以战胜恐惧,引发斗志,更不用说人们在狩猎的过程中,消耗的卡路里量了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Users visiting the website created for this study were asked to enter their weight, the food they'd eaten, and their physical activity.

VOA: standard.2010.07.30

"Because there are only a couple of previous records of eruption at this particular volcano, it is difficult to judge either how long the activity will go on there, or how long the volcano might then be dormant before it goes active again."

VOA: standard.2010.04.15

"What EU NAVFOR would like to see, and probably other commanders in the area, would be for all regional players now to take this threat seriously and all regional players in the area to join us in fighting this scourge, this criminal activity."

VOA: standard.2010.04.20