英语释义
1. land in or predominantly in grass
2. a tract of grassland: such as
3. a large area of level or rolling land in the Mississippi River valley that in its natural uncultivated state usually has deep fertile soil, a cover of tall coarse grasses, and few trees
4. one of the dry treeless plateaus east of the Rocky Mountains that merge on their east side with the prairies proper and are characterized by shorter grasses and drier less fertile soil
5. a large, mostly flat area of land in North America that has few trees and is covered in grasses
6. a large area of level or rolling grassland