You might have to stay away from low-lying areas for as long as twenty hours after the first warning.

VOA: special.2011.06.07

We say that we have very very short lives, because after all right now I've got some memories that I didn't have 2 hours ago.

我们的人生非常短暂，我现在就有一些,我2小时前没有的记忆。

耶鲁公开课 - 死亡课程节选

My music will be on less than 72 hours after I'm done the record and copyright it.

我录制完音乐，并且拿到版权之后，72小时之内就传上去了。

请听听我的歌 - SpeakingMax英语口语达人

They were told to use the gels twelve hours before sexual intercourse and again within twelve hours after sex.

VOA: special.2010.07.21

Take an atom that after 24 hours hasn't broken down.

如果一个原子在二十四小时内没有分裂的话

耶鲁公开课 - 死亡课程节选

The drug is nevirapine. If it is given within seventy-two hours after birth, it can often protect babies from H.I.V.

VOA: special.2010.05.24

A weird thing which is discussed in the textbook is if you wait a while and then you try it again with the bell after a couple of hours, the saliva comes back.

教材中讨论了一件奇怪的事情,如果你稍等一会,在几个小时之后用铃声重新去尝试，狗会重新开始分泌唾液。

耶鲁公开课 - 心理学导论课程节选

A few hours after Brown was captured, the Governor of Virginia and three Congressmen arrived in Harpers Ferry.

VOA: special.2009.07.02

I used to... you know, I lived and worked out of Sloane Lab up on the hill and it was easy to have office hours before or after class but now you have to make a special trip.

我以前...,我以前的工作和住的地方都是斯隆实验室外的,小山上,那时的开放时间设在课前或课后对我来说都很方便,但是现在你们就得费点儿周折了

耶鲁公开课 - 基础物理课程节选

The plan seemed good. And after the first few hours of battle, the Confederates were close to victory.

VOA: special.2009.09.17

So I think after 10 hours, you don't really have to be concerned about that.

所以，现在才过了10小时，你完全没必要担心。

Don't 实战 - SpeakingMax英语口语达人

After thirty-six hours, Brown was captured in the building that served as the fire engine and guard house.

VOA: special.2009.11.06

It will result in head pain, stomach problems and a feeling of tiredness after two to three hours.

VOA: special.2010.02.02

But experts generally advise against using the drug if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.09.22

But traditional guidelines say not to use tPA if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.08.12

Two hours after Apollo Thirteen went around the moon, the astronauts fired the rocket for five minutes.

VOA: special.2009.07.22

The chief justice of the United States swore Johnson into office a few hours after Lincoln's death.

VOA: special.2010.01.21

Vice President Arthur took the oath of office a few hours after the president's death.

VOA: special.2010.04.29

Faisal Shahzad was quickly identified and arrested fifty-three hours after the attempt in Times Square.

VOA: special.2010.05.08

Some studies have failed to produce clear evidence to support treatment after three hours.

VOA: special.2009.09.22

Two hours after he received the news, Tyler was on his way to Washington.

VOA: special.2009.01.29

Five hours after the explosion, flight controllers advised firing the rocket for thirty-five seconds.

VOA: special.2009.07.22

They came out four hours later after talks with the president and other officials.

VOA: special.2010.06.19

Also,doctors are advised to discontinue the antibiotics within twenty-four hours after the surgery.

VOA: special.2010.04.21

At last,after two hours, she sat down and ate like other people.

VOA: special.2009.11.08

Carbon monoxide levels in the blood return to normal after eight hours.

VOA: special.2010.03.09

Also,doctors are advised to discontinue antibiotics within twenty-four hours after the surgery.

VOA: special.2010.05.25

Three hours after leaving New Guinea, Amelia sent back a radio message.

VOA: special.2010.05.26

Two hours after arriving, they began to prepare the ground for planting.

VOA: special.2009.06.04

The president spoke just hours after North Korea launched a long-range rocket.

VOA: special.2009.04.11