单词：Feedback Systems
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Now, the VOA Learning English program Words and Their Stories. On this show, we explore language. Where do expressions come from? And how do we use them? Today we go down on the farm the dairy farm, to be exact. Many female animals, such as cows and
2018年VOA慢速英语(十一)月
The hardest-hit state is Iowa, the leading corn state and last year's top soybean producer. Transcript of radio broadcast: 24 June 2008 This is the VOA Special English Agriculture Report. Farmers in parts of the American Midwest face a difficult rec
VOA慢速英语2008年（六）月
Johnny, looking out there. What do you see? field, some hay. No, its more than that, mate. Come on, now work with me here. What is it? Honestly man, I just see a field. It's a cosmic canvas. It's a blank supernatural sheet for extra terrestrial art.
国家地理2007年
AGRICULTURE REPORT - Cover Crops By Mario Ritter Broadcast: Tuesday, March 23, 2004 This is Steve Ember with the VOA Special English Agriculture Report. The idea to grow a crop that improves the land
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By Brian Wagner Miami 14 May 2008 As crop prices remain high, farmers and other landowners are working to expand their output and take advantage of big profits for wheat, corn and soybeans. The boom is creating pressure to begin farming on lands enro
VOA标准英语2008年（五月）
Climate change is already beginning to hurt maize and wheat production, according to a new study. Higher average growing season temperatures(温度) in most major grain-producing countries are beginning to work against the progress made by improving
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