单词：qnantity of rediant energy
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SCIENCE IN THE NEWS - Growing Plants Inside the Box CHRISTOPHER CRUISE: This is SCIENCE IN THE NEWS, in VOA Special English. Today, we tell about an American farmer and an unusual device he developed. For twenty years, people around the world have be
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Today is the deadline for the Environmental Protection Agency to announce a new rule designed to clean up the haze that obscures views in national parks. A court-imposed deadline is part of a decade long fight over pollution, and that fight may not b
2005年NPR美国国家公共电台
Farmer Invents New Way to Grow Crops From VOA Learning English, this is Science in the News. Today, we tell about an American farmer and an unusual device he developed. For 20 years, people around the world have been buying his invention. Blake Whise
2013年VOA慢速英语(六)月
SCIENCE IN THE NEWS - Growing Plants and Thinking Inside the Box CHRISTOPHER CRUISE: This is SCIENCE IN THE NEWS in VOA Special English. Today, we tell about an American farmer and an unusual device he developed. For nearly twenty years, people aroun
2011年VOA慢速英语(六)月
Farmer Invents New Way to Grow Crops 农民发明新的方式种植农作物 From VOA Learning English, this is Science in the News. Today, we tell about an American farmer and an unusual device he developed. For 20 years, people around the world hav
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From VOA Learning English, this is Science in the News. Today, we tell about an American farmer and an unusual device he developed. For 20 years, people around the world have been buying his invention. Blake Whisenant and his family are farmers. They
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