- They are the key scavengers in this lake.
它们是湖里不可或缺的“清洁工” - The water here is just too cold for the bacteria that normally decompose the dead.
由于湖水过于寒冷 分解尸体的细菌很难在此存活 - Most rivers do not end in lakes
大部分河流并非止于湖泊 - but continue their journey to the sea.
而是一直奔向大海 - The planet's indisputable super-river is the Amazon.
地球上的超级大河 毫无疑问就是亚马逊河 - It carries as much water as the next top-ten biggest rivers combined.
它的水量是世界十大江河中 其余9条大河的总和 - Rising in the Peruvian Andes, its main trunk flows eastwards across Brazil.
它发源于秘鲁安第斯山区 其干流穿越整个巴西
but continue their journey to the sea. 而是一直奔向大海
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