I couldn't bear to spend three hours sitting in a train every day.

我不能忍受每天在火车上坐三个小时。

youdao

I currently live in Switzerland where the average daily viewing time is closer to three hours.

我正好生活在瑞士，这里人们每天看电视的时间将近三个小时。

youdao

In another three hours, I have to be at work.

三小时后，我得上班了。

youdao

"Three or four hours before I could fall asleep. I wake up three o'clock in the morning with the same stuff on my mind, tossing and turning.

VOA: standard.2010.05.04

In three hours I consumed: eight glasses of water, two cans of Coke Zero, a large strawberry and protein powder smoothie, and a 20 oz. bottle of Gatorade.

FORBES: Hidden Dehydration Danger

So, instead of spending three hours in a single restaurant, I continue to roam, nibbling at glimpses of the moon between the pachinko parlours, the click-clack of high-heels down an alleyway towards Kiyamachi, the way the couples still sit at decorous intervals along the riverbank, formal as courtiers, even if talking of that wild night in Waikiki.

BBC: The walk that made me love Japan

After blowing three hours on hold with no end in sight I called the travel agent.

FORBES: Hurricane Sandy's Lesson to Travelers: Use A Travel Agent