It was nine o'clock and they had been there only two hours before.

已经九点了，就在两个小时前他们曾去过那里。

youdao

We worked only two hours in the afternoon, but we accomplished a lot.

我们下午虽然只干了两个钟头，可是很出活。

《新英汉大辞典》

It's only two hours away by ferry, isn't it?

坐轮渡只要两小时，是吗？

youdao

The older kind of submarine used in World War Two could stay under water for only about forty-eight hours.

VOA: special.2010.06.11

But,the turbo-prof will be somebody who is assigned to Reims, and who takes the train there every day, or to Tours; but to Lyon also since this is only two hours, this is four-hundred kilometers.

不过涡轮教授被派到兰斯教书,他每天都要坐火车往返,抑或是去图尔斯,从这里去里昂要用两小时,这有四百公里

耶鲁公开课 - 1871年后的法国课程节选

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

But the alert lasted for only two hours and did not result in any rolling blackouts.

CNN: California briefly declares Stage Three power emergency

"She slept for only two hours" a night, said Sheen Kaur, one of her roommates, in an interview.

WSJ: India Rape Case: New Delhi Attack: The Victim's Story

Since science students often have heavy academic workloads, the program requires only two hours of come-when-you-can practice a week.

WSJ: Young Scientists Take Aim