河大

Mountains higher than the walls of the Grand Canyon of the Colorado towered above the long, narrow valley of Taurus-Littrow.

比科罗拉多河大峡谷两侧更高的山峰，矗立在细长狭窄的陶拉斯–利特罗峡谷上方；

Visitors to the Grand Canyon of the Colorado River in Arizona admire its breathtaking colors, rock formations and cliff.

前往亚利桑纳州欣赏科罗拉多河大峡谷的观光客，无不被它令人惊艳的颜色、岩层和峭壁所倾倒。

The plan is to get rid of this levee on the Mississippi River, which will flood about 200 square miles of land in Missouri.

这个计划是将密西西比河大堤炸毁，密西西比河的洪水将会淹没密苏里州约200平方英里的土地。

The first victim of an ecological crisis could be the Mekong giant catfish, which has been on the ropes for years.

这场生态危机的首个受害者可能会是湄公河大鲶，它们已经命悬一线多年。

The valley of the Yellowstone River has beautifully coloured rocks and three large waterfalls.

黄石河大峡谷有色彩艳丽的岩石和三个大瀑布。