大峡谷 (The Grand Canyon) 于1919年2月26日

你有没有看过大峡谷呢？不管你是真的去过大峡谷，或者只看过照片，你一定没有看过整个大峡谷。大峡谷总长277英里，深度范围从4000英尺到6000英尺，而且最宽的地方为8英里。

西元1919年2月26日，国会立法通过在亚利桑纳州设立大峡谷国家公园。但是大峡谷是怎么形成的呢？


Have you seen the Grand Canyon? Whether you have visited the park or seen photographs of it, it is unlikely that you have seen the entire canyon. The Grand Canyon is 277 miles long, ranges from 4,000 to 6,000 feet deep, and is 18 miles across at its widest point.

On February 26, 1919, Congress passed the act that established the Grand Canyon National Park in the state of Arizona. But what created the canyon?

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