The Colorado River Valley due to the strong do cutting action to form, so also known as the Grand Canyon.

峡谷由于受到科罗拉多河的强烈下切作用而形成，所以又称科罗拉多大峡谷。

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The Colorado River Valley due to the strong do cutting action to form, so also known as the Grand Canyon.

峡谷由于受到科罗拉多河的强烈下切作用而形成，所以又称科罗拉多大峡谷。

youdao