横向
1
Region between the two tropic lines
4
Low area between mountains
5
Distance north or south of equator
6
Largest river in South America
7
Raised area of land, smaller than a mountain
纵向
2
Seasonal heavy rainfall
3
Area where water covers the soil
4
Mountain that can erupt with lava
8
Flat elevated area of land
9
Goods sold to another country
10
Height above sea level
11
Flat grassland in tropical regions