An ancient empire and civilization of western Asia in the upper valley of the Tigris River. In its zenith between the ninth and seventh centuries b.c. the empire extended from the Mediterranean Sea across Arabia and Armenia.是什么意思_An ancient empire and civilization of western Asia in the upper valley of the Tigris River. In its zenith between the ninth and seventh centuries b.c. the empire extended from the Mediterranean Sea across Arabia and Armenia.在线翻译_英语_读音_用法_例句