For example, a gun that was designed to function without humans could shoot an attacker more quickly and without a soldier's consideration of subtle factors on the battlefield.

举个例子来说，一把枪被设计成没有人也可以射击，它就可以更快地击杀袭击者，因为它不用像人类士兵在战场上对微妙细节进行考虑。

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Humans cannot survive without a fair knowledge of the actual world.

没有对现实世界有相当多的了解，人类就无法生存。

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Humans, as we know, have always lived in groups; without this arrangement, our species would have died out long ago.

我们知道，人类一直是群居的；如果没有这种安排，我们的物种很早之前就灭绝了。

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Networked machines able to exchange data and take action without humans can boost productivity and customer satisfaction faster than any outsourced call center.

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