There are many ways to increase agricultural efficiency in the poorer areas of the world.

有许多提高世界较贫困地区农业效能的方法。

《柯林斯英汉双解大词典》

Promote efficiency and increase food variety.

提升效率和增加食物种类。

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They were not only curious, but often had a strong desire to control their environment, improve their learning efficiency and increase their own learning resources.

他们不仅好奇，而且往往有强烈的欲望想控制自己的环境，提高自己的学习效率，增加自己的学习资源。

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U.S.President Barack Obama has used his weekly address to encourage fiscal discipline in the federal government, and outline his plans to eliminate waste and increase efficiency.

VOA: standard.2009.04.25

So when I got my custom bike, I told Seven Cycles this and they built in an oversized seat tube to add rigidity for my standing pedal stroke, an efficiency increase.

FORBES: Why You Need a Custom Road Bike

NOte that 23% reduction in fuel consumption is due to the efficiency increase and another 5% reduction is due to the replacement of 5% of the gas by the ethanol (EDIE uses 5% ethanol).

FORBES: Big Corn Gets Bigger: America's Ethanol Decade

But there are some actions the President and his administration could take in a second term that would make us less dependent on imported oil from hostile nations, increase efficiency, increase the economic activity generated by the oil and natural gas industry, and do it all without harming the environment.

FORBES: An Energy Action List for A Second Obama Term