- On its way the system drains a third of South America.
全部流域面积达到南美洲的1/3
- Eventually, over 4,000 miles from its source,
最终 在经过4000英里的流程之后
- it empties into the Atlantic Ocean.
亚马逊河汇入了大西洋
- The Amazon transports a billion tonnes of sediment a year,
亚马逊河每年会带来10亿吨的泥沙
- sediment clearly visible at the mixing of the waters
泥沙使得河水交汇成为一道显眼的风景
- where one massive tributary, the Rio Negro, flows into the main river.
一条巨大的支流 ——内格罗河在此汇入干流
- Its waters are wonderfully rich.
河水中的物种异常丰富
来自《行星地球 第一季 第三集 Planet Earth S01E03 淡水》第 175 行