横向
1
Imaginary line around the middle of Earth
3
Steep rock face at edge of land
8
Piece of land jutting into the sea
9
Seasonal heavy rainfall
10
Largest hot desert in the world
11
Large natural stream of water
纵向
2
Large area covered with trees
4
Cold treeless Arctic plain
5
Physical features of land
6
Large slow-moving mass of ice
7
Region surrounding the North Pole