Instead of batteries, the news model USES solar power.

新的型号不再用电池，而用太阳能。

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In case the user's choice of news type was invalid, the model would return an error code, rather than the headlines.

在用户选择的新闻类型无效的情况下，模型将返回一个错误代码，而不是返回标题。

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Discovery and National Geographic, a joint venture with News Corporation, have perhaps the best model.

新闻集团的合资企业——探索频道与国家地理频道，[节目]模式或许最佳。

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Further down the list is media maven Arianna Huffington, whose online newspaper The Huffington Post practically invented the digital news model.

FORBES: The World's Most Powerful Women In Media

Even if News Corp does start charging and others follow suit, analysts say doing a U-turn on the free news model will be hard to pull off.

BBC: Is free news a thing of the past?

The other side of that argument, it has to be said, is that under a commercial system, there would be less room for serious news: the model of the American networks is scarcely one to aspire to.

ECONOMIST: British television