It initially surprises us that many of their cities were not built next to the rivers but instead on high terrain in rolling uplands.

最初让我们感到惊讶的是，他们的许多城市并不是建在河边，而是建在地势较高的起伏的高地上。

youdao

Rivers low, mountains high, the same moon in the sky.

山川异域，风月同天。

youdao

Rivers today have high muddy Banks, sandbars and bends. But they didn't always look that way.

今天的河流有高高的泥泞岸边、沙洲和弯曲，但很久以前并不是这样的。

youdao

Slowly the area became what visitors see today -- a dry land of high flat mesa tops and deep canyons formed through thousands of years by flowing rivers.

VOA: special.2010.07.05

The Environment Agency said Thursday's rain had left rivers "reasonably high".

BBC: West Midlands: Weather damage clear up begins

"This rain will be falling on saturated ground, the rivers are already very high and any further rain will exacerbate the problem, " he said.

BBC: Wales weather: Flood risk as more rain moves in

Environment Agency Wales said rivers are "unseasonably high" following the recent rainfall and emergency services are on alert as Wales could feel the brunt of the first of the autumn storms.

BBC: Flooding brings chaos to county