如果我们能弄清楚如何提高我们使用能源的效率，我们就能用可利用的能源做更多的事情。
If we could figure out how to improve the efficiency with which we use energy, we can do a lot more work with the energy that is available.
更为智能的电网不仅能帮助人们节省能源或更有效地利用能源，还能推动使用各种绿色能源，包括风能、太阳能、电动车。
A smarter grid will not only help people save energy or use it more efficiently, but will also promote the adoption of all kinds of green technologies, including wind, solar and plug-in vehicles.
不过他们没有使用太阳能或其他再生能源，而是决定利用虫子和啮齿类动物作为能源。
But instead of going for solar power or some other renewable source of energy, they decided bugs and rodents could do the job.
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