横向
1
Ocean between Americas and Europe/Africa
5
Large natural elevation of earth
6
Largest hot desert in the world
8
Flat grassland in tropical regions
9
Largest ocean on Earth
11
Landform where river meets the sea
纵向
1
Height above sea level
2
Distance north or south of equator
3
Region surrounding the North Pole
4
Region between the two tropic lines
7
Large natural stream of water
10
Region near the equator
12
Mountain that can erupt with lava