横向
1
Land surrounded by water on three sides
3
Height above sea level
6
Low-lying land surrounded by higher ground
7
Land surrounded by water
9
Large area covered with trees
10
Largest river in South America
纵向
2
Largest hot desert in the world
3
Region surrounding the North Pole
4
Dry land with little rainfall
5
Large body of water partly enclosed by land
8
Area where water covers the soil