A city of west-central Germany near the confluence of the Ruhr and Rhine rivers north of Cologne. Founded in the ninth century, it is a major iron and steel center that was largely rebuilt after heavy bombing during World War II. Population,625, 705.是什么意思_A city of west-central Germany near the confluence of the Ruhr and Rhine rivers north of Cologne. Founded in the ninth century, it is a major iron and steel center that was largely rebuilt after heavy bombing during World War II. Population,625, 705.在线翻译_英语_读音_用法_例句