横向
1
Largest river in South America
3
Large area covered with trees
4
City that is seat of government
6
Goods sold to another country
9
Deep narrow valley with steep sides
11
Steep rock face at edge of land
纵向
2
Region near the equator
5
Ridge of rock or coral near the surface
7
Region surrounding the North Pole
8
Area where water covers the soil
10
Large slow-moving mass of ice