A river of central Africa rising in southeast Central African Republic and flowing about805km(500mi)generally west along the boundary with Zaire to merge with the Uele and form the Ubangi River.是什么意思_A river of central Africa rising in southeast Central African Republic and flowing about805km(500mi)generally west along the boundary with Zaire to merge with the Uele and form the Ubangi River.在线翻译_英语_读音_用法_例句