Contrary to the notion of "instant" scientific discoveries, distinguished scientific accomplishment is a matter of opportunity and of continuous and concentrated effort over long years.

与这种“瞬息”的科学发明的看法相反，伟大的科学成就不仅仅是机会，而且是长年累月换而不舍、孜孜不倦的结果。

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Over the course of 80 million years, they evolved into tractor-trailer sized, long-necked plant-eaters, like Apatosaurus, formerly known as Brontosaurus.

经过八千万年的演化，他们变成了长脖子的草食性恐龙，并且长得像拖拉机那么大了，就如迷惑龙，以前称雷龙，那么大。

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But if silent genes degrade within 6 to 10 million years, how can long-lost traits be reactivated over longer timescales?

但是，如果沉默基因在600万到1000万年内退化，那么失去已久的性状如何在更长的时间内被重新激活呢？

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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

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

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

Further, in developing this camera module, Sharp applied high-density mounting technology nurtured over long years of experience in camera module development to achieve a compact form.

ENGADGET: Sharp busts out world's first 3D HD camera for mobile devices

This was a man whose faith in the cause never flagged over his long years in the field.

ECONOMIST: George Washington

Levy, 58, still simmers over a years-long fight his company, Publicis, had with True North Communications of Chicago.

FORBES: Monsieur Big