More energy efficiency could reduce oil demand growth.

提高能效会减缓石油的需求增加的速度。

youdao

And that is what China is doing, innovating more and more energy efficiency and clean power systems.

中国现在正努力发明更多的节能与洁净能源系统。

youdao

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.

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。

youdao

But for hybrid owners who demonstrate exuberant efforts to find more energy efficiency, "we really appreciate the fact that the Prius is the vehicle of choice, " said Jana Hartline, environmental communications manager for Toyota.

CNN: Hybrids trick out, plug in

So I want to give a special shout-out to all of the young people who participated, who focused their attention on how to harness cleaner forms of energy and how to create more energy efficiency.

WHITEHOUSE: President Obama Speaks at the 2013 White House Science Fair

Cavaney's remarks came at an API meeting Tuesday in Washington, where the group announced its new policies for energy security, calling for more energy efficiency, investment in new technologies and a diversity of fuel types.

FORBES: Bush's Energy Obstacle: Ethanol