Doing well in business requires effort.

做好生意需要努力。

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The latter requires effort but is likely of no benefit.

后者需要一定的付出工作，但很可能不能带来好处。

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I will read something that requires effort, thought and concentration.

我会读一些需要努力、思考和注意力集中的东西。

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Secretary of State Hillary Clinton says dealing with extremism in Afghanistan and Pakistan requires a regional effort.

VOA: special.2009.03.07

What this class requires is a very different kind of effort.

本课程需要的是一种非常不同的努力。

哈佛公开课 - 幸福课课程节选

And then there would be the butchering of the animal, there would be the securing the crops from the fields, and then bringing it to wherever you were going to eat it, which burns more calories and requires more physical effort, compared to the person on the right that really doesn't have to do much at all.

然后,他们要屠宰动物,要看护好地里的庄稼,还要把食物带到进食的地方,与右边的人相比,他们消耗更多卡路里,需要更强的体力,后者根本不必需付出那么多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

In Montana, everything slows down, and finding motivation requires effort.

WSJ: Huey Lewis at Home on the Ranch

Using this mode requires minimal effort and does not sacrifice image quality for simple operation.

ENGADGET: Samsung's PMA gifts: HD pocket camcorders, point-and-shoots with AMOLED screens

From a management perspective, it requires minimal effort and no cost yet can be a highly effective motivator.

FORBES: In Praise Of Praise