Orinoco
/ˌɒrɪˈnəʊkəʊ/- a river in northern South America, which rises in SE Venezuela and flows 2,060 km (1,280 miles), entering the Atlantic Ocean through a vast delta. For part of its length it forms the border between Colombia and Venezuela奥里诺科河（南美北部河流, 源出委内瑞拉东南部, 流经辽阔的三角洲注入大西洋, 全长2,060公里, 即1,280英里; 部分河段为哥伦比亚和委内瑞拉之间的边界线）。