plateau

A broad valley opened up leading to a high, flat plateau of cultivated land.

一个宽阔的山谷展开，通向一片平坦的高原耕地。

The region is extremely unusual geologically, Royden says, because of the very steep slopes at the boundary between the Sichuan Basin to the east and the Tibetan plateau to the west.

罗伊登说，这个地区在地质上极其不寻常，因为在东部的四川盆地和西部的青藏高原之间的边界上有非常陡峭的斜坡。

As some countries expand operations in Antarctica, the United States maintains three year-round stations on the continent with more than 1,000 people during the southern hemisphere's summer, including those at the Amundsen-Scott station, built in 1956 at an elevation of 9,301 feet on a plateau at the South Pole.

随着一些国家扩大在南极洲的业务，美国在南极大陆上建造了三个全年运行的监测站，在南半球的夏季，这三个监测站上的工作人员超过1000人，其中包括阿蒙森-斯科特站的工作人员。阿蒙森-斯科特站建于1956年，位于海拔9301英尺的南极高原上。

Inflation has reached a plateau.

通货膨胀停了下来。

Unemployment has at last plateaued out.

失业情况终于稳定了下来。