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

VOA: standard.2010.02.16

and the last quarter is a seminar in which you only go once a week for three hours

最后一个季度是研讨会，每周只需要参加三个小时，

群集课程 - SpeakingMax英语口语达人

They would sit around the fire and hang out for two, three hours without saying a word.

他们围坐在篝火边两三个小时，一句话也没说。

哈佛公开课 - 幸福课课程节选

Three hours later, NASA officials told the crew that everything was "OK" for what they called TLI, or trans-lunar injection.

VOA: special.2009.07.08

you always have to sit in the same room for three hours for multiple classes.

你必须在同一个房间为了多个课程坐三个小时。

对于古怪教授 - SpeakingMax英语口语达人

He says just choosing a jury even for the simplest trials can often take two or three hours.

VOA: special.2009.08.31

And if you are prepared to stand up for about two and a half to three hours to watch a play,

而且你要准备好了站上大约两个半小时到三个小时，去看一场戏剧，

莎士比亚环球剧院 - SpeakingMax英语口语达人

It took the astronauts more than three hours to complete the preparations for leaving the lander.

VOA: special.2009.07.15

I think for the past three months, I've only had five or six hours of sleep at night.

我觉得在过去三个月里，每晚我就睡5到6个小时。

I need 实战 - SpeakingMax英语口语达人

"One soldier had been fighting in the jungles for years. And I don't know if it had affected him or not, but when the clerk handed him a tweed suit to try on he spent three hours searching through the fuzz for snipers."

VOA: special.2009.03.09

That is because out of three days and two nights, the families will only see each other for a total of about 11 hours.

VOA: standard.2009.09.26

The system effectively controlled participants' blood sugar for 27 hours, during which time they ate three high-carbohydrate meals and slept through the night at a hospital.

VOA: standard.2010.04.15

It was carrying enough fuel to fly for more than three hours.

VOA: standard.2009.08.02

Havens recently told this reporter that he had already been onstage for nearly three hours when he played that song, which suddenly sprang to mind from his doo wop and gospel days back in Brooklyn.

VOA: standard.2009.08.15

"Now we have what we would call rush hour conditions or peak travel conditions for as much as eight hours during the day - about three to four hours in the morning and similar time in the evening."

VOA: standard.2010.07.26