横向
1
Large natural elevation of earth
5
Wearing away of land by water or wind
6
Height above sea level
8
Largest river in South America
纵向
2
Region near the equator
3
Flat elevated area of land
4
Long-term weather patterns of an area
7
Land surrounded by water on three sides
9
Line dividing two countries
10
Ridge of rock or coral near the surface