n.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）

The Orinoco flows through Venezuela and Colombia.
奥里诺科河流经委内瑞拉和哥伦比亚。
They traveled by boat up the Orinoco River.
他们乘船沿奥里诺科河向上游航行。
The Amazon and the Orinoco basins are rich in biodiversity.
亚马逊流域和奥里诺科河流域生物多样性丰富。
The indigenous people of the Orinoco region have unique customs.
奥里诺科地区原住民有独特的风俗习惯。
The Orinoco Delta is an important wetland ecosystem.
奥里诺科三角洲是一个重要的湿地生态系统。
We camped near the banks of the Orinoco for three nights.
我们在奥里诺科河边露营了三晚。
The Orinoco River played a significant role in early trade routes.
在早期贸易路线中，奥里诺科河发挥了重要作用。
The Orinoco has numerous tributaries that feed into it.
奥里诺科河有许多支流汇入。
The area around the Orinoco is known for its gold deposits.
奥里诺科周边地区以金矿而闻名。
Many species of fish can be found in the waters of the Orinoco.
奥里诺科河中的水生动物种类繁多。