关于三峡大坝的英语作文怎么写

The Grand Canyon
Although the Grand Canyon is a mere baby by geological standards, formed only 5
or 6 million years ago, the rock layers at the bottom of the Canyon areThe Grand Canyon is a steep-sided gorge carved by the Colorado River in the
United States state of Arizona. It is largely contained within the Grand Canyon
The Grand Canyon is a steep-sided gorge carved by the Colorado River in the
United States state of Arizona. It is largely contained within the Grand Canyon
2 May 2007 ... The Grand Canyon we visit today is a gift from past generations. Take time to
enjoy this gift. Sit and watch the changing play of light and