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

The kinds of things that are going to be invented over the next several years is just to me outstanding, and particularly for somebody who's got skills in software.

在接下来的数十年里要被发明出的东西,真是令人望而生叹，尤其对于有软件才能的人来说。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

Because we have, as you've hopefully realized, made a concerted effort over the past several years to really reach out to students on this campus who might not otherwise have considered this as a field of exploration, just a one semester course, or even ultimately a concentration or minor.

你们也认识到了，因为我们，在过去几年中作出了共同的努力,来影响这个校园的学生们,但是某些学生可能认为这并不是一个探索性的领域,而只是学期中的一个课程而已，或者只是一门主修或选修课程。

哈佛公开课 - 计算机科学课程节选

Under the agreement, painstakingly negotiated with the outgoing Japanese government over several years, the United States will move 8,000 U.S.Marines from the Futenma base on Japan's southern island of Okinawa to the U.S.

VOA: standard.2009.08.31

How come these have risen above infectious diseases over the last several hundred years?

在过去的几百年中,它们的致死率是如何超过感染性疾病的的

耶鲁公开课 - 生物医学工程探索课程节选

Over the years,researchers have identified several substances in the blood that can serve as what they call cardiac biomarkers.

VOA: special.2009.07.15

She says her students over the past several years have increasingly used less formal English in their writing.

VOA: special.2010.01.28

Defects have been linked to at least thirty-nine deaths over the past several years.

VOA: special.2010.02.26

Over the years, several attempts were made to build the canal.

VOA: special.2010.08.12

Over the next several years, many Americans lost their jobs.

VOA: special.2010.06.13

Over the next several years he bought more theaters.

VOA: special.2009.05.31

South Korean farmers have held occasionally violent demonstrations over the years, and several farmers have committed suicide to protest the agreement.

VOA: standard.2009.04.22

"Over the past several years, I have had the honor to call Teddy a colleague, a counselor and a friend,"

VOA: standard.2009.08.26

Johnson says that her students, over the past several years, have increasingly used a more informal English vocabulary in formal assignments.

VOA: standard.2010.01.16

You can expect to see a lot more from us in terms of investigations of individuals and institutions over the next several years."

VOA: standard.2009.08.19

Republicans and many conservative Democrats are balking on the cost of the reform, which could reach one trillion dollars over the next several years.

VOA: standard.2009.09.04

"If you look at the large studies, that were published over the last several years, including a large number of patients comparing Avandia to a placebo or other drugs, there was actually no increase in that risk.

VOA: standard.2010.03.02

"We know that surface use of dispersants decreases the environmental risk to shorelines and organisms at the surface and we know that dispersants break down over weeks rather than remaining for several years as untreated oil might."

VOA: standard.2010.05.18