A river formed in central Ghana by the confluence of the White Volta and the Black Volta and flowing about467 km(290 mi) southward through artificial Lake Volta to the Bight of Benin in the Gulf of Guinea.是什么意思_A river formed in central Ghana by the confluence of the White Volta and the Black Volta and flowing about467 km(290 mi) southward through artificial Lake Volta to the Bight of Benin in the Gulf of Guinea.在线翻译_英语_读音_用法_例句