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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)
From electric automobiles to solar wheels, hybrid cars are the wave of the future. But what about a truck that runs on the energy of the past? An unconventional doctoral student is determined to make the original renewable fuel an efficient, economic
VOA标准英语2010年(十二)月
Hazards 危险 Mind out. Don't get too close. It's very hot. We don't want you to burn yourself. 当心。请勿靠近。高温。小心烫伤。 And please be careful when you walk across the floor. It might be slippery.'' 走过地板请小心。地板
职业技术英语口语
Steve Kitchin demonstrates his prototype invention. With the touch of a button he simply backs the chair in, and the elevator-like lift raises up and slides into the cab. Last spring, Steve Kitchin had had enough. For 10 years since an auto accident
VOA标准英语2010年(五)月
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
本期内容： Hitch a wagon to a star 要胸怀大志 首先，我们来学习两个单词 hitchH-I-T-C-H 做动词有拴住，套住，给马上挽具等意思 he hitched hisboat to a tree when he landed.他一上岸就把小船系在了一棵树上
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