Also,the root can stay in the ground for as long as three years, so it can be harvested as needed.

VOA: special.2010.06.08

Pax Romana This led to what we famously call the Pax Romana, "the Roman Peace," because you had the end of long, hundreds of years of civil wars and other wars, at least within Rome itself.

这导致了著名的，即“罗马和平“，因为长达几百年的，内战及大小战争终于结束了，至少在罗马本土结束了。

耶鲁公开课 - 新约课程节选

that's a long time ago, more than... well, about a hundred years, but I think,

那是很久以前，多过……嗯，差不多一百年了，但是我觉得，

以爱因斯坦为榜样 - SpeakingMax英语口语达人

Its long history almost came to an end two years ago when a major fire burned its South Hall building.

VOA: special.2009.08.21

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

Two years ago,European researchers reported that aspirin may have what they called a "long-term protective effect against colorectal cancer."

VOA: special.2010.12.14

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

But he agrees that in recent years, many companies have tied pay to short-term performance, instead of their long-term health.

VOA: special.2009.10.30

I think a lot of us, we do what we can in this lifetime, hoping that we're are part of a long trajectory of a moral arch toward justice What would like to see in America in 20 years?

我认为我们之中很多人在一生中会竭力奋斗，希望我们能够沿着道德，正义的,的轨迹发展,您如何构想美国20年后的情景呢？

普林斯顿公开课 - 人性课程节选

He wrote a book about the final years in the political life of a long-time mayor of Boston,Massachusetts.

VOA: special.2010.04.11

One of the big arguments that is part of this story is when did this development of new way of fighting come about; rather quickly, over a matter of a few years, or did it stretch out over quite a long time.

人们对此最大的争议就在于,这种新型战斗方式是何时为军队所用的,是在短短几年内迅速发展起来的呢,还是在很长的一段时间逐步形成的呢

耶鲁公开课 - 古希腊历史简介课程节选

A few years later, a settler named Abijah Long also found the entrance and went into the cavern.

VOA: special.2009.12.07

I guess most people think thirty years is long enough, but that's the way mortgages go ever since.

我猜大多数人都认为30年足够长了,这是抵押贷款的演变过程

耶鲁公开课 - 金融市场课程节选

Professor Kaufman says it could take the slow-growing coral as long as one hundred years to recover.

VOA: special.2010.08.10

It takes so long that by the time the spaceship comes back, 100 years will have gone by.

去了很久，以至于宇宙飞船回来的时候，100年都已经过去了。

耶鲁公开课 - 死亡课程节选

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

But she says the research does show the need to study whether or not there are long-lasting effects of repeated exposure over several years.

VOA: special.2011.03.02

He had spent much time with them during their long trip to Utah ten years earlier.

VOA: special.2009.06.04

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

But the most common cause is long-term smoking or years of breathing other people's smoke.

VOA: special.2010.06.23

But even with all the progress, there is still a long way to go to reach all eight goals approved by world leaders ten years ago.

VOA: special.2010.04.26

Long-period comets,however, may take several hundred years to orbit the sun.

VOA: special.2011.02.09

Officials say the improvements could take as long as two years.

VOA: special.2009.06.29

These creatures became trapped as long ago as forty thousand years.

VOA: special.2010.04.07

Onions are biennials; their life cycle is two years long.

VOA: special.2011.06.28

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

VOA: special.2009.12.07

"Forty years--so long!

VOA: special.2010.05.15

And the long-awaited Airbus A400M, a military cargo plane, is years behind schedule and billions of dollars over budget.

VOA: standard.2010.07.23

The election was held to replace long-time president Omar Bongo, who died in June after 42 years in power.

VOA: standard.2009.10.04