When the Colorado plateau was uplifted millions of years ago, it gave the water more energy to cut back through the canyon and wear away the rocks.

当几百万年前，科罗升起使穿越峡的河流更加凶猛冲击更的岩石。

The cliffs of the Grand Canyon, which stand over 1,800 meters tall, were carved by the Colorado River, which flows across the 336,000-kilometer Colorado Plateau in the southwestern United States.

大峡悬崖1800米，由科罗河冲刷而成，该河贯穿美国西南部336000平方公里的科罗。

He's done the Colorado Plateau, the Four Corners area.

他已经完成了科罗和四角地区（美国亚利桑那州、科罗州、新墨西哥州和犹他州交界处）的探索。

It all began about 6 million years ago, when the Colorado River first began flowing down and out of the Rocky Mountains and started carving a path through the Colorado Plateau.

这一切都始于大约 600 万年前，当时科罗河开始流下并流出落基山脉，并开始在科罗开辟一条道路。