横向
1
Dry land with little rainfall
4
Vast body of salt water
5
Mountain that can erupt with lava
6
Largest hot desert in the world
7
Distance north or south of equator
纵向
2
Wearing away of land by water or wind
3
Large natural stream of water
8
Ridge of rock or coral near the surface
9
Large slow-moving mass of ice
10
Deep narrow valley with steep sides
11
Visual representation of an area