The hardest task that television asks of anyone is to turn the power off after he has turned it on.

电视让人们做的最困难的任务是在打开电视后把电源关掉。

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The blades turn on the generator located inside the tower, which creates power.

叶片让塔内的发电机开始工作，从而进行发电。

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Solar homes produce the most power on the hot sunny afternoons when everyone rushes home to turn up the air conditioner.

在炎热晴朗的下午，当每个人都赶回家开大空调时，（安装）太阳能的家庭发电量最大。

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Few other countries that depend heavily on hydro-electric power, which in turn depends on unpredictable rainfall, have so far dared to liberalise.

ECONOMIST: Brazil's energy crisis

The party's Achilles' heel--its lack of any independent check on its power--undermines at every turn its efforts to police corruption, vet its members, reform its bureaucracy and respond to crises.

FORBES: Beijing Dispatch

When the housing market became truly chaotic in 2004--06, and bankers were doing things they had never done before, the Fed--as road cop--had the power to turn on its siren and pull those bankers over.

FORBES: Our Cover Story