单词：ram air turbine (rat)
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Idiom: On my back 一个人不停地对某人唠叨 Hit the book: Harness Sustainable Emission Inexhaustible Mitigate Turbine
趣味青春英语
Amid the recent economic downturn, demand in the U.S. is rising for small wind turbines to power people's homes. The American Wind Energy Association says sales of such turbines rose 15 percent in 2009. One man in Florida is generating his own power
VOA标准英语2010年(六)月
U.S soldiers wait after collecting the body of an insurgent from a vineyard near the Bagram airbase after insurgents launched a brazen pre-dawn assault against the giant U.S.-run Bagram Air Field, in Bagram, Afghanistan. At least 10 insurgents have b
VOA标准英语2010年(五)月
仿生无桨叶风力发电机 Energy created by conventional three-blade wind turbines is cheap, sustainable and pollution-free. But according to current estimates, their fast-moving blades kill up to 300,000 birds annually in the U.S. 三叶风力发
VOA标准英语2016年(一月)
Bird-friendly Bladeless Wind Turbine Mimics Nature Energy created by conventional three-blade wind turbines is cheap, sustainable and pollution-free. But according to current estimates, the devices' fast-moving blades kill up to 300,000 birds annuall
VOA标准英语2015年(十一月)
By Melinda Smith Washington, DC 15 February 2008 Obesity is becoming a worldwide problem, even in developing countries. But diet drinks and food prepared with sugar substitutes do not seem to help curb people's appetites. Now a new study may provide
VOA常速英语2008年（二月）