Joint chiefs of Staff - The principal military advisory group to the President of the United States, composed of the chiefs of the Army, Navy, and Air Force and the commandant of the Marine Corps.是什么意思_Joint chiefs of Staff - The principal military advisory group to the President of the United States, composed of the chiefs of the Army, Navy, and Air Force and the commandant of the Marine Corps.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句