Doctors are advised to give them within the hour before the operation.

VOA: special.2010.04.21

And they have graciously meet available their complete Film library. Not just the documentaries but the films They use before cut together the documentary for every hour of documentary their might be a hundred more hours of source video and film.

他们还实现了完整的电影图书馆,不仅是成型的纪录片,还有最初未剪辑的完整电影,每一个小时的纪录片背后他们可能,有超过100个小时的资料片电影。

麻省理工公开课 - 媒体、教育、市场课程节选

But I needed a full half hour before I walked into the office before I felt comfortable that I could talk to him about what happened overnight, what was in the newspaper, what his day was gonna be about.

但是在进入办公室前,我需要准备半个小时,然后我才可以,和布什谈话,谈论晚上发生的事，报纸刊登的东西，和他的一天要处理些什么。

普林斯顿公开课 - 国际座谈会课程节选

NASA warned the three astronauts inside about one hour before the object was to reach the area of the station.

VOA: special.2009.04.01

One hour before landing, Lovell,Swigert and Haise said thanks and goodbye to their lifeboat, the lunar module.

VOA: special.2009.07.22

The president spoke in Pittsburgh, less than an hour before deliberations resumed at the G20 economic summit.

VOA: standard.2009.09.25