横向
1
Long-term weather patterns of an area
4
Land surrounded by water
8
Cold treeless Arctic plain
9
Flat grassland in tropical regions
10
Line dividing two countries
11
Total number of people in an area
纵向
2
Visual representation of an area
3
Height above sea level
4
Goods brought in from another country
5
Half of the Earth
6
Largest hot desert in the world
7
Large body of water partly enclosed by land
12
Distance east or west of prime meridian
13
Vast body of salt water