The quest for finding alternate energy sources has been hastened in Japan in the wake of the Fukushima nuclear power station crisis sparked by the tsunami in March.

自从3月日本海啸引发福岛核危机以来，日本就加快了寻找替代核能能源的步伐。

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No one is sure just how many Americans live off the national public-utilities grid - relying on generators or alternate energy sources such as solar, wind and geothermal.

没人知道究竟有多少美国人靠国家公共事业的网络生活—依靠发电机或替代能源，如太阳能、风能和地热能。

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Nuclear and solar energy are two alternate sources, and neither of them is limited.

核能以及太阳能是另外两种能源，它们都是取之不尽的。

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Such a move would be a setback for the Obama Administration's push to develop alternate sources of energy, slash greenhouse gas emissions and create jobs.

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