The power of the brain is much better than the power of the fist or the kick of the shin.

大脑的威力远胜于开始即报以拳打脚踢。

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A football which generates enough electricity to charge a mobile phone or power a light from a brief kick about is undergoing trials in World Cup host country South Africa.

在世界杯主办国南非，一种通过短暂一踢而产生足够电能、并能为一部手机充电或者为一个LED灯供能的足球正在接受试验。

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Kicking under water with your hands behind you will teach you the best way to power yourself forward with that kick.

用你的手踢在水下你后面要教导你们最好的办法了，也会自己力量。

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In tests the bike performed well when climbing up slopes and gave a substantial kick of power when coasting on level ground.

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Oh, and you might end up paying somewhat of a monthly surcharge to use this bad boy too, as the 230-watts (which beats the estimations, actually) it'll require to operate could kick your power bill up a notch or two.

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Finally, a 1 kW electric radioisotope power supply running on Plutonium 238 (Pu-238) would kick in to power an ion thruster engine.

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