Some five years ago, high school seniors in America generally spent more than six hours a day on electronic devices.

大约五年前，美国高三学生每天花在电子设备上的时间一般超过六小时。

youdao

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。

youdao

Some years ago, the researcher James Gilligan was called into a prison to try to help out with an inmate who kept assaulting guards, even after he was placed in solitary confinement 24 hours a day.

许多年以前，研究者James Gilligalligan 应邀进入一所监狱，试图帮助一名总是攻击看守的犯人走出困境，这名犯人被24小时单独拘禁。

youdao

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

We had some broad outlines 24 hours ago.

CNN: AllPolitics - FDCH Transcript

The Northern Ireland Office (NIO) said Thursday's meeting, which lasted about two hours, had been arranged some time ago.

BBC: NI Secretary of State Theresa Villiers

Two years ago a power cut in Soho left some businesses without power for more than 10 hours.

BBC: Power cut in London's West End closes shows