This super fast airplane also set a record for flying at a height of 80, 000 ft. it was used by the U.S. Air Force as spy plane.是什么意思_This super fast airplane also set a record for flying at a height of 80, 000 ft. it was used by the U.S. Air Force as spy plane.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句