This was proven at the battle of the monongahela river in 1755 near what is now pittsburgh , pennsylvania 1755年发生在距现今的宾夕法尼亚州匹兹堡不远的孟农加希拉河战役便证实了这一点。
3.
A borough of southwest pennsylvania , a suburb of pittsburgh on the monongahela river . population , 21 , 923 鲍德温宾夕法尼亚州西南部一自治村镇，位于莫农加希拉河沿岸，匹兹堡的近郊。人口21 ， 923
