横向
1
Ocean between Americas and Europe/Africa
2
Visual representation of an area
5
Flat elevated area of land
6
Flat grassland in tropical regions
7
Dry land with little rainfall
8
Largest river in South America
9
Vast body of salt water
纵向
1
Height above sea level
2
Large natural elevation of earth
3
Physical features of land
4
Tool for finding directions
10
Region near the equator
11
Large area covered with trees