Let's start with North American corn or maize, as it's often called.

让我们从人们常说的北美的玉米开始吧。

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But now the notion of exploiting trees for fuel is being updated with a high-tech twist. The idea is to make ethanol, a biofuel that usually comes from maize (corn) or sugar cane, from trees instead.

而如今开发树木作燃料的讨论与高科技密切相关，这就是从树木中提取乙醇，取代通常是从玉蜀黍（玉米）或蔗糖中提取的一种生物燃料。

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The biggest producers of ethanol are agribusinesses or farmers' co-operatives growing maize (corn) in America and sugarcane in Brazil.

最大的乙醇生产商是美国种植玉米的和巴西种植甘蔗的农业企业或者农民合作社。

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Corn,or maize,is mostly fed to animals or made into ethanol fuel and high-fructose corn syrup.

VOA: special.2010.12.07

We see about the same for maize or corn.

BBC: Climate shifts 'hit global wheat yields'

In the fields, in the shadow of giant billboards giving motivational advice or productivity targets, women in headscarves bend over crops of maize, corn and rice.

BBC: On holiday in North Korea

Also in Germany, there are aerobic digesters which are fed by maize (corn) rather than waste and so the same argument would arise over growing crops for fuel or for food as applies to biodiesel production and must ring an eventual death-knell for both biodiesel and biogas, if the latter is made from food too.

FORBES: U.K. Joins Europe On Biogas 'Waste Into Energy' Strategy