横向
1
Flat grassland in tropical regions
5
Largest ocean on Earth
6
Distance east or west of prime meridian
7
City that is seat of government
8
Where river meets the sea
11
Deep narrow valley with steep sides
纵向
2
Imaginary line around the middle of Earth
3
Vast body of salt water
4
Region surrounding the North Pole
9
Visual representation of an area
10
Cold treeless Arctic plain
12
Height above sea level
13
Body of water surrounded by land