The National Aerospace Plane program, created to design a supersonic jet that could fly payloads into space like the shuttle and also be used as a bomber to reach destinations around the world in a couple of hours, was scrapped in1994.是什么意思_The National Aerospace Plane program, created to design a supersonic jet that could fly payloads into space like the shuttle and also be used as a bomber to reach destinations around the world in a couple of hours, was scrapped in1994.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句