While many states have adopted standards requiring that a certain amount of energy come from renewable sources, Congress has yet to enact a nationwide standard.
虽然许多国家都采用的标准要求一定量的能源来自可再生能源，美国国会尚未制定全国性的标准。
Many environmentalists, including Mr Schwarzenegger, argue that more power lines must be built to connect cities with potential sources of renewable energy.
包括州长施瓦辛格在内的许多环保人士都认为应建造更多的输电线，以连接有潜在可再生能源的城市。
Well we can use renewable sources of energy and luckily there are many.
我们可以用那些可再生能源，幸运的是，它们有不少。
In many areas, you can switch to energy generated by clean, renewable sources such as wind and solar.
有很多地区可以改为洁净、可再生的能源型式，如风力和太阳能。
In many areas, you can switch to energy generated by clean, renewable sources such as wind and solar.
有很多地区可以改为洁净、可再生的能源型式，如风力和太阳能。
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