横向
1
Landform where river meets the sea
3
Seasonal heavy rainfall
7
Steep rock face at edge of land
8
Ocean between Americas and Europe/Africa
9
Region between the two tropic lines
10
Dry land with little rainfall
纵向
2
Flat grassland in tropical regions
3
Large natural elevation of earth
4
Large area covered with trees
5
Line dividing two countries
6
Wearing away of land by water or wind
11
Largest hot desert in the world