He says that by some estimates, laughter is a human ability that is about four million years old.

他说，根据估计，大笑作为人类的一种能力，已经有四百万年的历史了。

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The human ability to recognise text as it becomes more and more distorted is remarkably resilient, says Gordon Legge at the University of Minnesota.

明尼苏达大学的Gordon Legge表示，文本变形的程度越来越大，即便如此，人类识别文本的能力极强。

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Dr Von Ahn's team has devised two image-based schemes, called SQUIGL-PIX and ESP-PIX, which rely on the human ability to recognise particular elements of images.

von Ahn博士的团队设计了两套以图像为蓝本的方案，称之为SQUIGL - PIX和ESP - PIX，它们要依靠人类能力辨别图像中特定的成分。

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He says identifying human antibodies that will stop the ability of the virus to reinvent itself is the first step.

VOA: special.2009.03.04

Physiologists ran tests, showing, proving scientifically the limit of human ability was running the mile in 4 minutes.

生理学家进行实验，在科学上展示证明人类能力极限,是四分钟跑一英里。

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In fact, doctors proved the 4 minutes for the mile was the limit of human ability.

事实上医生证明四分钟跑一英里,是人类能力的极限。

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However, he also trains harder than anyone else, pushing himself to the limits of human ability.

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But they're still like small children compared with the vast scope of human ability.

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Companies should avoid pure reliance on their own data scientists, he adds, because competition stretches human ability and encourages more innovation.

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