One time,after World War Two ended, he brought his radio show to soldiers waiting at a base in California to return to civilian life.

VOA: special.2009.03.09

First of all, it will only be a minute or two at a time, maybe once or twice a lecture.

首先，每次只有一两分钟，一堂课最多不超过两次。

哈佛公开课 - 幸福课课程节选

And you like working with kids. But maybe just one or two at a time.

你挺喜欢跟小孩子相处的，但也仅仅是同时跟一两个孩子打交道的时候。

How many课堂 - SpeakingMax英语口语达人

Tiger Woods is a four-time champion at the Masters, most recently in two thousand five.

VOA: special.2010.04.10

That's why your operating systems and your personal computers often crash for no apparent reason. Just because two things happen to, once in a while, occur at the same time.

这就是为什么你的电脑或者操作系统,经常会毫无预兆的崩溃了,这是因为两件事情正好同时发生了，通常还有人工输入。

麻省理工公开课 - 计算机科学及编程导论课程节选

The Gemini program would send two astronauts at a time into space.

VOA: special.2009.06.24

So, a couple of weeks ago we proposed to swap two integers, and we couldn't at the time.

那么，几周前，我们提出交换两个整数，然而在那时，我们办不到。

哈佛公开课 - 计算机科学课程节选

"At a time when we're fighting two wars and facing a serious deficit, this would have been an inexcusable waste of money.

VOA: standard.2009.07.21

Now this was nineteen-eighty-two, quite a long time ago, at a time when people really weren't paying much attention to calories like they are now, so you'd expect the errors to decline as time goes on and there's some evidence of that, but they're errors nonetheless.

这是1982年的实验,很早之前了,当时的人们并不像今天的人们一样,那么关注卡路里,所以你会预计误差会随时间推移而减小,有证据证明了这一点,但误差仍然存在

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

At around midday local time, officials say a car loaded with explosives struck two vehicles carrying Italian paratroopers along the airport road near the U.S.embassy.

VOA: standard.2009.09.17

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

And when you call a function, one of the things X that happens is whatever your passing in, for instance, X, ; and if this is A, this thing gets copied into A; so at that moment in time of calling increment, I actually have two copies of the same value in memory but they're referred to by different names.

当你调用一个函数，其中发生的一件事情是,不管你输入什么，比如，或者是A，它把这个东西复制到A中;,调用increment的时候，实际上在内存中，有两个同样的值的内存块,但是它们有不同的名字。

哈佛公开课 - 计算机科学课程节选