A city of northern West Virginia on the Monongahela River near the Pennsylvania border. It is a shipping and industrial center. Population, 25,879.是什么意思_A city of northern West Virginia on the Monongahela River near the Pennsylvania border. It is a shipping and industrial center. Population, 25,879.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句