It is the largest river in the world.

这是世界上最大的河流。

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This essay also discussed the ecological environment and existing problems of the Yangtze, the largest river in China.

文章同时讨论了中国第一大河长江的生态环境现状和面临的问题。

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Such erosion may cut a gorge or canyon. The Grand canyon of the Colorado river is the largest river canyon in the world.

如此的侵蚀可能磨损出峡，或峡谷。科罗拉多河大峡谷是世界上最大的河流峡谷。

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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