横向
1
Body of water surrounded by land
4
Cold treeless Arctic plain
7
Seasonal heavy rainfall
8
Region surrounding the North Pole
纵向
2
Large area covered with trees
3
Vast body of salt water
5
Visual representation of an area
6
Largest river in South America
9
Landform where river meets the sea
10
Land surrounded by water
11
Flat elevated area of land
12
Region near the equator