河流名称的意思是“银之河”。 而当地的商人发家致富的手段并不是靠矿石，而是靠出售牛肉，谷物，以及生长在周围草原上的农作物。
The city was established in 1580 on the Rio de la Plata, or "river of silver, " and its merchants grew rich not from ore but from trading beef, grain, and produce grown on the surrounding Pampas.
在2005年，尼日利亚的收成很差，商人们就从尼日尔进口谷物，该国与尼日利亚北部交界。
In 2005, when Nigeria had a bad harvest, traders imported grain from Niger, which borders Nigeria to the north.
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