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As an alternative to expensive helicopters or traditional jets, some law enforcement agencies are experimenting with lightweight craft that stay airborne using just a parachute. Steve Mort | Palm Bay, Florida 01 January 2010 The Palm Bay Police Depar
VOA标准英语2010年(一月)
This is the VOA Special English Development Report. Harvest in Benin A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers. The study in Benin found that solar-powered pumps are
2010年慢速英语(一)月
今天要学的一个词是：pump。pump，Pump一般是指泵，或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采，《洛杉矶时报》的标题说：Oilfield Closure t
英语单词荟萃
Did you know that in general we have on the average, i guess, about 26 eletronic gadgets in our house and they are constantly all pluging them and charging them and very little that power actually goes to chargers. Some of it is just regularly runnin
英语杂谈
今天要学的一个词是：pump。pump，Pump一般是指泵，或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采，《洛杉矶时报》的标题说：Oilfield Closure t
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People flying into Indias southern city of Cochin may see numerous solar panels around Cochin International Airport. But they may not know that the airport was the first in the world to be fully powered by solar energy. A sea of shiny solar panels st
2019年VOA慢速英语(二)月