The arrival of this South American predator threatened the survival of native species.
这种
美肉食动
的到来威胁到了

种的生存。
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Great civilizations and intensive settlement are hardly associated with the Amazon, yet this 4,000-mile-long South American river carries about 20 percent of the world's fresh water-more than the Mississippi, Nile, and Yangtze combined.
亚马逊河几乎从未与伟大的文明和密集聚居地这样的字眼关联在
起。然而,4000英里长的南美洲河流承载着世界上20%的淡水——比密西西比河、尼罗河和长江的总和还多。