steppe
noun [ C usually plural, U ] uk/step/ us/step/
（尤指东南欧、俄罗斯和亚洲北部无树的）干草原，大草原
a large area of land with grass but no trees, especially in eastern Europe, Russia, and Central Asia
These people have lived for centuries on the Russian steppes. 这些人已经在俄罗斯大草原上居住了几个世纪。