Renewable sources of energy must be used.

可再生的能源必须利用。

《柯林斯英汉双解大词典》

Efforts are also under way to exploit renewable sources of energy to power telecoms networks.

研究使用可再生能源为电信网络供能的工作也正在努力中。

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Let us do more to develop renewable sources of energy, and make them affordable to all people.

我们要更加努力开发可再生的能源，使得所有的人能用得起。

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The importance of maintaining a steady source of these non-renewable sources of energy for Exxon Mobil cannot be over-emphasized.

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We invest in the renewable sources of energy that will lead to new jobs, new businesses and less dependence on foreign oil.

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Public discussions of climate change and greenhouse gas emissions also help to highlight the benefits of using more renewable sources of energy.

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