Medical experts say small amounts of carbon monoxide over a long period of time can greatly harm an unborn baby.

VOA: special.2010.02.02

And you have pretty good ideas of what these mortgages behave like over a period of time.

你就能知道,这些新增贷款情况如何了,这需要一段时间。

斯坦福公开课 - 经济学课程节选

or if it's over a long period of time and it's an ongoing situation that you want to get rid of.

或者是一件持续了很久的事，你特别想摆脱它。

I'm afraid of 课堂 - SpeakingMax英语口语达人

So,to get a sense of what the regional moisture patterns have been, dryness and wetness over such a long period of time in great detail, I would call it a kind of victory for paleoclimate science."

VOA: special.2010.05.25

That's where you're just asked over a period of time, how often you eat this list of foods and you're given a very long list of foods.

正如同你们刚才问的,你多久吃一次这些食物,你有一个很长的食物列表

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"Any substantial eruption of a volcano has a potential to do that over a short period of time.

VOA: standard.2010.04.15

An interval is over a period of time.

时间强化则是间隔一定时间才给予奖励。

耶鲁公开课 - 心理学导论课程节选

As the essays move chronologically--they were written over a period of time--as the essays that were written near Lolita come into the book, that word appears, also, describing various things.

正如随笔是按时间顺序走向的，它们也是,有时间顺序的，随笔写的时候Lolita刚刚发表，那个字出现了，描绘了很多事情。

耶鲁公开课 - 1945年后的美国小说课程节选

So, the process of developing a vaccine occurred over a long period of time.

疫苗的发展经历了很长一段时间

耶鲁公开课 - 生物医学工程探索课程节选

Over this time period, that portfolio had an expected return of something like a little over 9% and it had a standard deviation of a little over 9%.

在这个时间段，这个投资组合的预期收益率是,9%多一点%,标准差是9%多一点。

耶鲁公开课 - 金融市场课程节选

Now,that has changed, for sure; but,the centralization of the French government and the domination of Paris over the life of the nation is very difficult to change, over a long period of time.

现在,情况已经发生了改变,但是法国政府的中央集权化,以及巴黎在国民生活中的支配地位,在相当时间段内,都很难得以改变

耶鲁公开课 - 1871年后的法国课程节选

That's what, of course, makes it clear they were royal; by the way, there are only a few of these graves over a large period of time.

这些也说明了墓主人是王室,顺带一提,在很长一段历史时期,这样的墓穴寥寥无几

耶鲁公开课 - 古希腊历史简介课程节选

And even if over a period of time the average amount of their regard is lower because they started lower and then got higher than someone who was always high, it's the ones who were first lower who then went up that capture our attention.

即使在一段时间内,他们对我们的评价依然不高,但是因为起点较低,只要是在日益改善，总比一开始就对我们评价好的人更有吸引力，正是开始低而慢慢增加的人,会引起我们的注意。

耶鲁公开课 - 心理学导论课程节选

Now we're going to compare high glycemic index foods with low glycemic index foods, and so the curve of blood sugar with high glycemic index foods, those that create an exaggerated blood sugar response over a period of time might look like this.

现在我们要对高血糖指数的食物和,低血糖指数的食物进行对比,那些高血糖指数食物所形成的曲线,那些会在某段时间内产生过高血糖的食物,所形成的曲线看起来可能就是这样的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It's also going to be the process of watching an artistic form unfold over a very exciting period of time.

更是一个观察某种艺术形式在一段,刺激的时间里展现的过程。

耶鲁公开课 - 1945年后的美国小说课程节选

The interest rate has units of time, so I have to specify a time period over which I'm measuring an interest rate.

不同时间段有不同的利率,因此我必须在不同的时间段,细化不同的利率

耶鲁公开课 - 金融市场课程节选

Even if you imagine that slaves did the work, you would need a hell of a lot of them, over a long period of time, and you had to feed them, if nothing else.

哪怕你想象这个墓穴是由奴隶所建造,那也一定是成千上万的奴隶,经过了相当长的时间工作,至少,你还要养活这些奴隶

耶鲁公开课 - 古希腊历史简介课程节选

You could take weights on people measured over a period of many years and look at the variability over time in weight and then link it to things like heart disease and cancer, and I'll come back later and talk about the results of that particular study.

我们还可以得到人们很长一段时间里,每年的体重数据,观察体重随着时间变化的变动,并将观察结果与心脏疾病和癌症联系起来,我等一下会告诉大家这项研究的结果

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选