Guadiana
/ˌgwɑːdɪˈɑːnə/- a river of Spain and Portugal. Rising in a plateau region south-east of Madrid, it flows south-westwards for some 580 km (360 miles), entering the Atlantic at the Gulf of Cadiz. For the last part of its course it forms the border between Spain and Portugal.瓜廸亚纳河（流经西班牙和葡萄牙, 发源于马德里东南的高地, 向西南蜿蜒580公里, 即360英里, 在加的斯湾注入大西洋; 最下游河段为西班牙与葡萄牙的界河）。