He'd spent four and a half years in windowless cells, much of the time in chains.

他在无窗的牢房里呆了4年半，大部分时间是手铐脚镣。

《柯林斯英汉双解大词典》

The competition only happens every four years, and the last time the team went, they won the third place in the nation.

这个比赛每四年举行一次。上次这个队去参赛的时候，他们获得了全国第三名。

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At that time, my little brother was about four years old and he missed mum all the time.

那时，我的小弟弟大约四岁，他一直想念妈妈。

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Jill Wiseman of Austin,Texas, left her job at a high-tech company four years ago to do beading full time.

VOA: special.2009.05.18

And not only was it a party school, you were going to have an amazing time for the four years and beyond.

不仅是个派对大学，而且未来四年甚至以后，都会过得很快乐。

哈佛公开课 - 幸福课课程节选

Oh, that goes actually way back time when we were like little kids like, four years old,

哦，那其实要追溯到我们是小孩子的时候了，四岁的时候，

和朋友一起逛洛杉矶 - SpeakingMax英语口语达人

She refused to be drawn on whether she would compete at the Rio Games in four years time but laughed off talk of a possible retirement.

BBC: Step change in government sport policy needed, BOA says

And if the legacy of London 2012 really proves to be a defining shift in the global attitude towards disability, then what on earth could Rio expect to achieve in four years time?

CNN: London 2012 delivers unexpected legacy

Welsh Business Minister Edwina Hart mentioned the need for new housing, further underlining the likelihood that people from outside north Wales could be among the workforce if work on the power station started in three or four years time.

BBC: Wylfa nuclear plant: Hitachi officials visit Anglesey