横向
1
Body of water surrounded by land
4
Total number of people in an area
5
Seasonal heavy rainfall
8
Land surrounded by water
10
Cold treeless Arctic plain
纵向
2
Visual representation of an area
3
Physical features of land
6
Piece of land jutting into the sea
7
Largest river in South America
9
Narrow sea inlet between cliffs
11
Large natural elevation of earth
12
Landform where river meets the sea