Also, the Air Force was part of the Army in the early days, first as part of the Signal Corps, then as the Army Air Corps, then as the Army Air Force (AAF), and finally the independent Air Force.是什么意思_Also, the Air Force was part of the Army in the early days, first as part of the Signal Corps, then as the Army Air Corps, then as the Army Air Force (AAF), and finally the independent Air Force.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句