American officials say it will take at least two years for what one official called a meaningful measure of progress toward long-term stability.

VOA: special.2009.05.09

I guess you've already looked at Stocks for the Long Run; you've seen 200 years worth of data.

我想你们已经读过《股市长线法宝》,见过长达200年的数据

耶鲁公开课 - 金融市场课程节选

Adjustable rate mortgages have a long term -they might last for thirty years -but the interest rate is not fixed for the whole thirty years.

可调利率抵押贷款的期限很长,也许会长达30年,但是利率在30年间并不是固定的

耶鲁公开课 - 金融市场课程节选

He says the final goal of the work is to develop a long-term plan to operate and protect the tomb for years to come.

VOA: special.2009.12.15

That car stage or that car slice if we want to talk about that way it has only been around for however long months, years, a year.

那辆车的阶段或者部分,如果我们非要分析的话,只能持续很短时间,几个月，几年，或者一年。

耶鲁公开课 - 死亡课程节选

He worked on Abijah Long's mining operation for twenty years.

VOA: special.2009.12.07

Others last for months or even years. There is no clear way of predicting at the present time how long this activity might go on for."

VOA: standard.2010.04.16

(Speech) The former Czech Republic president said the changes in 1989 were "undoubtedly aided by people who,for long years" tried to show the world "the real situation" in what was then Czechoslovakia.

VOA: standard.2009.11.17