横向
1
Large slow-moving mass of ice
5
Cold treeless Arctic plain
6
Raised area of land, smaller than a mountain
7
Where river meets the sea
9
Low-lying land surrounded by higher ground
10
Ocean between Americas and Europe/Africa
纵向
2
Flat grassland in tropical regions
3
Land surrounded by water
4
Long-term weather patterns of an area
7
Goods sold to another country
8
Large natural stream of water
11
Physical features of land