Twelve hours later she was all smiles again.

十二小时之后，她又喜笑颜开了。

《牛津词典》

Hours later we reached the outskirts of New York.

数小时后我们到达了纽约市的外围地带。

《柯林斯英汉双解大词典》

He collapsed in the street and died two hours later.

他昏倒在大街上，两小时后便去世了。

《牛津词典》

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 then go to dinner, you come back and you realize that your roommate has now vested you by five seconds and three hours later you've inched ahead again ; so it's a wonderfully motivational tool; and speaks to just how addictive frankly this stuff was and that too for me.

然后你去吃饭,回来后意识到你的室友已经快你五秒钟,三小时后你再次小幅领先,所以这是一个奇妙的激励工具;,坦率地说这东西多么的诱人,对我来说也不例外。

哈佛公开课 - 计算机科学课程节选

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

The automatic thermostat control then turns it back to the normal settings a few hours later.

BBC: How warm is your home?

Two hours later, the recipient pig was killed and the liver checked for signs of life.

BBC: Frozen liver transplant success

About two hours later, police stormed the compound, killing all three remaining men inside, they said.

WSJ: Terror Suspects Slain in Indonesia