It made the trip in eighty-nine days, and twenty-one hours.

VOA: special.2009.12.23

A couple of hours, because typically there's just one battle; one side beats the other and that's the war for now.

几个小时,一般来说只有一次战斗,一方攻打另一方,这就是战争

耶鲁公开课 - 古希腊历史简介课程节选

but that one assignment takes 10 hours to complete.

但这个作业要花十个小时来完成。

很好奇住宿生活 - SpeakingMax英语口语达人

She said that if they could complete one hundred thousand hours of community service,she would give the graduation speech in May.

VOA: special.2010.05.28

One hundred fifty plus office hours is the current tally that you'll see starting to appear on the course's website, thanks to our 60 plus person staff and you'll also see online soon once you have your accounts as per problem set 0 spec.

50多个小时的课时,就是你现在在课程网站上要看到的，在这里我们要感谢60多位同仁的帮助,一旦你开通账号，你就可以在线看到了。

哈佛公开课 - 计算机科学课程节选

If resident doctors work shorter hours, for example,mistakes could happen when one resident takes over a patient's care from another.

VOA: special.2009.06.02

There's twenty-one days, there's thirty days, there's twenty-four hours. Now look at this!

有二十一天法,三十天法,二十四小时法,还有这个

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Critics of limiting hours say such a requirement could cost American hospitals about one billion seven hundred million dollars a year.

VOA: special.2010.07.13

So in sections where you have the opportunity to work in smaller environments with one of the teaching fellows, in office hours we have an opportunity to work one on one, hands-on in the computer lab or else we're on campus and really get personalized attention when it comes to diving into these problems.

因此在分组后,你们有机会与教员们一起在小房间里工作，在上机时间内我们有机会一对一授课，在实验室内亲身实践,不然的话我们在校园里探讨问题,会被很多人围观的。

哈佛公开课 - 计算机科学课程节选

The study found there is strong support for restricting work by doctors-in-training to sixteen or fewer hours at one time.

VOA: special.2010.07.13

Course assistants as we use the jargon are alumni of CS50 who return to the course for a couple of hours a week having taken it in prior years, to help you, the newest batch of students, one on one with office hours, with problem sets; and similarly do the CS function as they might in many courses.

课程助理用我们的行话说就是CS50校友0,他们在前几年一直都是一周回来几个小时,来帮助你们这些新生，在上机的时候以一对一的方式，帮助你们完成这些问题集,在很多其他课程中他们也是这么做的。

哈佛公开课 - 计算机科学课程节选

The climber,played by James Franco, spends one hundred twenty-seven hours trapped alone with little chance of survival.

VOA: special.2011.02.21

Let's create a graph here that on the x axis it's going to be time, so time zero will be when you first take in a food and then one hour later, two hours later will be shown as you go from left to right, and then we'll have blood glucose level up on the y axis.

我们在这建立一个曲线图,X轴代表的是时间,所以零时间点是你第一次进食的时间,然后一小时以后,两小时以后,是从左到右呈现在图表上的,在Y轴上是你的血糖值

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 set one by playing poker for seventy-two hours, which was a record for that card game.

VOA: special.2011.05.16

If resident doctors work shorter hours, the researchers said, errors could happen when one resident takes control of a patient's care from another.

VOA: special.2010.07.13

On average, each adolescent reported using some kind of media five and one-half hours a day.

VOA: special.2009.03.10

The Earth takes twenty-four hours to complete one full turn or revolution of three-hundred-sixty degrees.

VOA: special.2010.07.14

Some residents had been spending more than one hundred hours a week at their hospitals.

VOA: special.2010.07.13

On July thirty-first, the ship traveled six hundred and one kilometers in only twenty-four hours.

VOA: special.2009.12.23

Some residents were spending more than one hundred hours a week at their hospitals.

VOA: special.2009.06.02

Eagle was flying. Man had been on the moon for twenty-one and one-half hours.

VOA: special.2009.07.15

They returned to Roosevelt Field eight days, fifteen hours and fifty-one minutes later.

VOA: special.2009.03.18

Hours later, Tariq Jahan, the father of twenty-one-year-old victim Haroon Jahan,appealed for calm.

VOA: special.2011.08.13

Media use totaled an average of five and one-half hours a day.

VOA: special.2009.02.11

It traveled two thousand one hundred kilometers in less than ninety hours.

VOA: special.2010.06.11

They completed over one hundred sixty-three thousand hours of volunteer work.

VOA: special.2010.05.28

Scott says that waiting in line for three hours was worth it to hold one of the medals.

VOA: standard.2010.02.16

Dr.Brook says just one to two hours of breathing automobile exhaust in traffic can be deadly.

VOA: standard.2010.08.04

"The unanticipated consequence is that people are now crossing less frequently and have to wait one to two hours coming in and out of our ports of entry."

VOA: standard.2010.04.21