Those completing study programs at foreign medical schools may be required to return to their own country for at least two years after their training ends.

VOA: special.2009.06.02

Another characteristic of these years, which scholars refer to as the Dark Ages, just as they do the years after the fall of the Roman Empire-- dark for two reasons. Dark, in the most obvious way, because we don't have any writing, no record of them.

这也是这段时期的另一个特征,学者们称之为,黑暗时代,他们也是这么称呼,罗马帝国陷落后的那段时期的,称黑暗主要有两个原因,黑暗,最明显的理由,是因为我们没有任何关于他们的史料和记录

耶鲁公开课 - 古希腊历史简介课程节选

Two years after he started using watercolor, he stopped illustrating for magazines like Harper's.

VOA: special.2010.07.25

After World War Two, she worked for many years in the United States.

VOA: special.2009.05.13

She says it probably will take about two years after the pandemic has ended for the true figure to be established.

VOA: standard.2009.12.29