横向
1
Distance east or west of prime meridian
6
Cold treeless Arctic plain
7
Large area covered with trees
8
Half of the Earth
10
Largest ocean on Earth
纵向
2
Flat elevated area of land
3
Large natural elevation of earth
4
Landform where river meets the sea
5
Imaginary line around the middle of Earth
9
Seasonal heavy rainfall
11
Narrow sea inlet between cliffs
12
Area where water covers the soil