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

So, I make a pledge. You give me seven hours a week, you will pass this class, not just by the skin of your teeth. You will pass it.

我保证，你们要是一周学习7个小时，肯定可以通过这门课，一点都不惊险，你们会通过的。

麻省理工公开课 - 固态化学导论课程节选

You could come by during my office hours, which are on the syllabus, and you could send me e-mail and set up an appointment.

你们可以在我的办公时间来找我,教学大纲上有写我的办公时间,你们也可以通过电子邮件跟我预约

耶鲁公开课 - 心理学导论课程节选

But the crew avoided capture by hiding in places like the engine room for many tense hours.

VOA: special.2009.05.27

And 72 hours by train he found himself on a huge cotton plantation, near Pickensville, Alabama, on the in west central Alabama, on the Mississippi border, at 14-years-old.

在搭乘了七十二小时的火车后,他发现自己身处亚拉巴马的皮肯斯维尔附近,一个巨大的棉花种植园中,在亚拉巴马西部的中心,密西西比的边界,那年他仅仅十四岁

耶鲁公开课 - 美国内战与重建课程节选

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

VOA: special.2011.02.21

A food frequency--by the way, you also have the issue of whether the particular twenty-four hours that a person is interviewed is representative of their diet overall, because you can imagine how much your food intake varies from day to day.

食物摄取频率,顺便说下,还有一个问题,就是在选取的24小时里,测试者,是不是对总体有代表性,因为你可以想象,每天事物的摄入量都是不同的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

A team led by Alex Blum of Mount Sinai School of Medicine in New York found that the public wants to limit work hours by resident doctors.

VOA: special.2010.07.13

Soldiers had seized the building a few hours before. Mr.Ravalomana announced Tuesday he was stepping down due to the crisis characterized by what he called a polarization of opinion within the army and the citizenry.

VOA: standard.2009.03.18