横向
1
Large natural stream of water
3
Flat elevated area of land
7
Piece of land jutting into the sea
8
Landform where river meets the sea
纵向
2
Flat grassland in tropical regions
4
Cold treeless Arctic plain
5
Narrow sea inlet between cliffs
6
Goods sold to another country
7
Steep rock face at edge of land
9
Half of the Earth