The canyon is hemmed in by towering walls of rock.

峡谷四周环绕着高耸的岩壁。

《柯林斯英汉双解大词典》

In 1996, scientists caused an experimental flood of the Colorado River by releasing water from Glen Canyon Dam above the Grand Canyon.

1996年，科学家从大峡谷上方的格伦峡谷大坝放水，造成科罗拉多河实验性洪水。

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A black bear cub peers from a Cottonwood tree after being scared up there by a visitor to the Whitewater Canyon nature preserve near Palm Springs, California.

加利福尼亚棕榈泉附近的白水大峡谷自然保护区里面，一头年幼的黑熊被游人吓到后从一颗三角叶杨后面窥视。

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Arizona is the Grand Canyon State because of the famous winding canyon carved by the Colorado River.

VOA: special.2009.08.02

However,much of what we know today about the Grand Canyon was recorded by John Wesley Powell.

VOA: special.2009.10.07

Visitors pay twenty-five dollars each to walk beyond the canyon walls, surrounded by the canyon, while standing at the edge of the glass bridge.

VOA: special.2009.10.07

They eat organic, low-calorie meals prepared by the Canyon Ranch chef--not what may be their usual favorites from McDonald's (nyse: MCD - news - people ), Wendy's International (nyse: WEN - news - people ) and Coca-Cola (nyse: KO - news - people ).

FORBES: Teenage Weight Land

The Humane Society of the Pikes Peak Region is coordinating shelter for animals affected by the Waldo Canyon Fire.

CNN: Help for wildfire evacuees and first responders

How is it that I find myself underwhelmed by the Grand Canyon?

FORBES: Southwest Winter Roadtrip: The Grand Canyon, Through a Lens