The experts say individual progress and not a set time period should always guide a decision to return to play.

VOA: special.2009.10.28

In other words what happens to people's health as they lose weight and then regain it repeatedly over a period time?

换言之,在一段时期内反复增重减重,对人们的健康有什么影响

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

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

"I think Dubai went a little bit too fast and they borrowed too much money in a very short period of time."

VOA: special.2009.12.04

It began to infiltrate other disciplines and was in general a high-spirited horse for that certain period of time.

它逐渐渗入到其它学科,总之是那个时代的一匹黑马。

耶鲁公开课 - 文学理论导论课程节选

Others who want to graduate in three years must pay for the same education as four-year students, but in a shorter period of time.

VOA: special.2009.07.23

At this time, somewhere in this period, there was a transfer of power in the Canaanite pantheon from the older gods to younger gods.

在那段时间的某个地方,迦南众神的权利由年老的神向年轻的神过渡。

耶鲁公开课 - 旧约导论课程节选

Miller examined this difficult period in American history by setting his play at another difficult time.

VOA: special.2009.11.29

I'm going to read passages quite a bit today, since some of you may not have been able to get the RIS packet in time, it being shopping period.

会怎样，可能有同学没拿到课件,我会多讲些，由于还没步入正轨。

耶鲁公开课 - 1945年后的美国小说课程节选

Nash studied the works of seven important painters who lived during a one hundred year period, a time frame similar to that of jazz.

VOA: special.2010.03.24

Clearly, important information is to be conveyed to students from people who settle in the fields for a long period of time.

显然，对某个领域,进行长时间研究的学者,会将重要的信息,传达给学生。

麻省理工公开课 - 媒体、教育、市场课程节选

When a baby's head is stuck in the birth canal for an extended period of time, it cuts off the blood supply to the woman's surrounding organs.

VOA: special.2010.08.09

My watch was dissembled for a period of time, perhaps we should say my watch didn't exist during that period of time.

我的手表在修理的时候消失了，我们或许该说我的手表,在修理的那段时间，并不存在。

耶鲁公开课 - 死亡课程节选

The results suggested that people do act differently if they think they are working with a group for a short period of time instead of a long period.

VOA: special.2009.03.03

Protein was a lot different in this period of time and many health authorities think a higher protein diet would benefit humans.

蛋白质的含量也不同,现代很多健康专家认为,高蛋白质的摄入是对人们有益的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Their dreamy songs sound like they came from another time period.

VOA: special.2010.05.07

This is the present value of $1 in one time period, which I'm taking to be a year.

这就是一美元在一段时期内的现值,我只是将一美元持有一年

耶鲁公开课 - 金融市场课程节选

And over a period of time her grades fell completely.

VOA: special.2010.04.22

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

"Many mothers deliver at home in sub-Saharan Africa and it's very difficult for them to get to a hospital or clinic which may be miles away in that time period.

VOA: special.2010.05.24

It was implanted into the first patient, a gentleman in Kentucky, and he stayed alive for a period of time with this device replacing his heart.

第一个植入这个人工心脏病人是,住在肯塔基州的一位先生,他在移植手术后,存活了一段时间

耶鲁公开课 - 生物医学工程探索课程节选

"And what happens is we have mazes and the children are able to organize the robots and see if they can get them through the maze within a certain time period."

VOA: special.2010.07.28

Let's say oftentimes orchestral musicians, they're sitting there and they're not playing so they have to be able to count for a long period of time.

时常,管弦乐团的乐手们坐在那里,却不需要演奏,因此他们不得不打很长一段时间的拍子

耶鲁公开课 - 聆听音乐课程节选

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

So it's important to be here on time and stay throughout 3 hours' period.

一定不能迟到,每节课3个小时，不能早退。

麻省理工公开课 - 电影哲学课程节选

"This experiment is unique because six people will be isolated for a long period of time and will work autonomously."

VOA: standard.2010.06.02

The style of warfare that emerges in this period, apparently for the first time, is what we call the hoplite phalanx and each half of that needs to be explained.

显然,这个时期第一次出现了,一种独特的战争形式,那就是重步兵方阵,我来给大家分别解释下这两个词

耶鲁公开课 - 古希腊历史简介课程节选

It doesn't mean it's going to be easy. But,I think it can be over the period of time that we're talking about."

VOA: standard.2010.07.22

At the same time, I do mean to give you some sense of the period in which they're writing, some sense of modernism as a field, as one of the richest fields in English language writing.

同时，我也会给你们提供一些背景知识,来了解作者创作的年代，以及现代主义的思想领域，就其作为英语文学创作最丰富的领域之一而言。

耶鲁公开课 - 现代诗歌课程节选

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