Three hours passed quickly.

三个小时很快就过去了。

youdao

Three hours passed.

三个小时过去了。

youdao

Three hours passed. Then the professor began to collect the papers.

三小时的考试时间过去了，教授开始收试卷。

youdao

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

But recent findings suggested that tPA may be effective in saving brain tissue even if three to four and a half hours have passed.

VOA: special.2009.09.22

Police have reviewed CCTV footage and discovered that Mr Ramsay headed west towards Charing Cross after leaving the casino and passed three people on Newton Street in the early hours of 15 February.

BBC: Mother makes plea over missing son Ross Ramsay