横向
1
Largest ocean on Earth
4
Low-lying land surrounded by higher ground
5
Largest hot desert in the world
8
Raised area of land, smaller than a mountain
9
Vast body of salt water
13
Long-term weather patterns of an area
纵向
2
Visual representation of an area
3
Large area covered with trees
6
Region surrounding the North Pole
7
Mountain that can erupt with lava
10
Height above sea level
11
Ocean between Americas and Europe/Africa
12
Land surrounded by water on three sides