Plant-based foods like beans, rice, corn and wheat have the smallest influence.

豆类、大米、玉米和小麦等植物性食物的影响最小。

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Machines have largely taken over planting, watering and harvesting crops such as corn and wheat, but the monitoring of cattle has gone through fewer changes.

机器在很大程度上接管了玉米和小麦等作物的种植、浇灌和收割工作，但对牛的监测变化较少。

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Corn and wheat prices have soared this year.

今年玉米和小麦价格攀升。

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There was enough rain. Huge crops of wheat and corn were produced.

VOA: special.2010.04.15

Okay. Then you can look at how many things like cows are raised in the United States, and how many acres there are of carrots, or wheat, or corn, or whatever it is.

好了,然后就可以看看,比如,美国养了多少头牛,种植了多少英亩的胡萝卜,小麦,玉米,或其他东西

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Another is how much it's processed and how if you take things that started out as food like wheat or corn, and then they're processed many different ways, and things are added to them or done to them that change their chemical properties, does that affect whether we would consider them food?

另一个是它们被加工过程和程度,比如对于用来食用的麦子和玉米,有很多种加工方式,可以向它们添加一些东西,或进行一些加工去改变它们的化学性质,这会影响我们去判断它们是否为食品吗

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Corn and wheat prices have both risen by about 45% in the past month alone.

BBC: Wet weather helps Bank's inflation forecast

Manufacturers had to lay people off, driving down demand for corn and wheat even further.

FORBES: What GOP & Obama Can't Say About Job Market

At the end of February, corn and wheat prices were up 80% from year earlier prices.

FORBES: Fed Exports Inflation, Stokes Revolutions