横向
1
Steep rock face at edge of land
2
Mountain that can erupt with lava
3
Landform where river meets the sea
5
Land surrounded by water on three sides
8
Distance east or west of prime meridian
10
Ocean between Americas and Europe/Africa
纵向
2
Low area between mountains
4
Cold treeless Arctic plain
6
Low-lying land surrounded by higher ground
7
Wearing away of land by water or wind
9
Flat grassland in tropical regions