横向
1
Wearing away of land by water or wind
5
Cold treeless Arctic plain
6
Visual representation of an area
7
Steep rock face at edge of land
8
Narrow sea inlet between cliffs
11
Where river meets the sea
纵向
2
Large natural stream of water
3
Area where water covers the soil
4
Land surrounded by water
9
Distance east or west of prime meridian
10
Low-lying land surrounded by higher ground