横向
1
Flat grassland in tropical regions
4
Flat elevated area of land
5
Visual representation of an area
6
Deep narrow valley with steep sides
8
Steep rock face at edge of land
9
Dry land with little rainfall
纵向
1
Largest hot desert in the world
2
Seasonal heavy rainfall
3
Where river meets the sea
7
Ocean between Americas and Europe/Africa
10
Distance north or south of equator