横向
1
Largest hot desert in the world
5
Largest ocean on Earth
6
Dry land with little rainfall
10
Largest river in South America
纵向
2
Tool for finding directions
3
Mountain that can erupt with lava
4
Land surrounded by water
7
Seasonal heavy rainfall
8
Body of water surrounded by land
9
Low-lying land surrounded by higher ground
11
Flat elevated area of land