横向
1
Seasonal heavy rainfall
5
Wearing away of land by water or wind
6
Region surrounding the North Pole
8
Cold treeless Arctic plain
纵向
2
Largest hot desert in the world
3
Region near the equator
4
Line dividing two countries
7
Total number of people in an area
9
Tool for finding directions
10
Body of water surrounded by land
11
Flat grassland in tropical regions