a river that rises in northern West Virginia and flows north into Pennsylvania where it joins the Allegheny River at Pittsburgh to form the Ohio River
造句
用作名詞(n.)
The boat navigated the Monongahela, then followed the Ohio to Cairo, Illinois, where it joins the Mississippi. 該船經(jīng)過莫農(nóng)加希拉，然后沿著俄亥俄河行駛到伊利諾伊州的凱羅，在這里它進入密西西比河。