横向
1
Wearing away of land by water or wind
5
Line dividing two countries
6
Largest hot desert in the world
9
Steep rock face at edge of land
11
Body of water surrounded by land
纵向
2
Region between the two tropic lines
3
Tool for finding directions
4
Large area covered with trees
7
Goods brought in from another country
8
Flat elevated area of land
10
Visual representation of an area
12
Area where water covers the soil