A city of northern Austria on the Danube River west of Vienna. Originally a Roman settlement,it was a provincial capital of the Holy Roman Empire in the late15th century. Population,199,910.是什么意思_A city of northern Austria on the Danube River west of Vienna. Originally a Roman settlement,it was a provincial capital of the Holy Roman Empire in the late15th century. Population,199,910.在线翻译_英语_读音_用法_例句