横向
1
Area where water covers the soil
5
Height above sea level
6
Line dividing two countries
7
Largest hot desert in the world
10
City that is seat of government
纵向
2
Steep rock face at edge of land
3
Large natural stream of water
4
Landform where river meets the sea
8
Largest river in South America
9
Low area between mountains
11
Goods sold to another country