横向
1
Seasonal heavy rainfall
4
Height above sea level
7
Flat grassland in tropical regions
10
Large slow-moving mass of ice
11
Wearing away of land by water or wind
纵向
2
Largest river in South America
3
Large natural elevation of earth
5
Low-lying land surrounded by higher ground
6
Region between the two tropic lines
8
Distance north or south of equator
9
Body of water surrounded by land