横向
1
Body of water surrounded by land
3
Large natural elevation of earth
4
Flat grassland in tropical regions
5
Total number of people in an area
9
Deep narrow valley with steep sides
10
Largest hot desert in the world
纵向
2
Physical features of land
3
Visual representation of an area
5
Flat elevated area of land
6
Landform where river meets the sea
7
Distance north or south of equator
8
Ocean between Americas and Europe/Africa
11
Largest river in South America