横向
1
Cold treeless Arctic plain
4
Region surrounding the North Pole
6
Large body of water partly enclosed by land
8
Tool for finding directions
9
Low-lying land surrounded by higher ground
10
Ocean between Americas and Europe/Africa
纵向
2
Area where water covers the soil
3
City that is seat of government
5
Flat grassland in tropical regions
7
Region near the equator
11
Imaginary line around the middle of Earth
12
Low area between mountains
13
Raised area of land, smaller than a mountain