横向
1
Flat grassland in tropical regions
4
Line dividing two countries
5
Steep rock face at edge of land
6
Chain or group of islands
8
Largest ocean on Earth
10
Visual representation of an area
纵向
2
Imaginary line around the middle of Earth
3
Region surrounding the North Pole
7
Total number of people in an area
8
Land surrounded by water on three sides
9
Piece of land jutting into the sea
11
Large area covered with trees
12
City that is seat of government