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9. Prevent...from... The weather prevented the flight from leaving. We must prevent Aides from spreading. This disease is a serious problem.
Explorations - Voyager: The Extraordinary Story of a Flight Around the World Explorations -- a program in Special English by the Voice of America. It was called the last great goal in flying. It would be a flight around the world without stopping or
EXPLORATIONS - The Voyager Airplane By Marilyn Christiano Broadcast: Wednesday, March 31, 2004 (THEME) ANNCR: EXPLORATIONS -- a program in Special English by the Voice of America. The Voyager in Fligh
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China's Defense Ministry has asked the US to stop conducting reconnaissance activities close to China to prevent hazardous incidents. Spokesperson Yang Yujun was responding to US claims that two Chinese jet fighters last week unsafely intercepted one