It is the largest river in the world.

这是世界上最大的河流。

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The forest is fed by the Amazon river, the largest river in the world by volume, which also has the biggest drainage basin on the planet.

亚马逊河蜿蜒纵横，作为世界上流量最大的河流，造就了地球上最大的流域。

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The Amazon River Basin boasts the largest river system on Earth and harbors an ecosystem that is tremendously complex.

亚马孙河流域拥有地球上最大的河系，能为极其复杂的生态系统提供庇护。

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The Mekong River is the lifeblood of Southeast Asia, with the largest inland fisheries in the world.

VOA: standard.2010.01.11

The Mississippi is the largest river.

NPR: New Citizenship Test Gets Dry Run

Nadav Kander's images of China's Yangtze River depict communities adjusting to the changes caused by the re-routing of the country's largest river.

CNN: Photos capture plundering of Earth's resources

In the province of Alberta are three major oil sands areas: the Athabasca (the largest), Peace River, and Cold Lake.

FORBES: The Promise And Pitfalls Of Canada's Oil Sands