横向
1
Landform where river meets the sea
4
Ocean between Americas and Europe/Africa
5
Large area covered with trees
7
Region surrounding the North Pole
11
Ridge of rock or coral near the surface
纵向
2
Large slow-moving mass of ice
3
Cold treeless Arctic plain
6
Seasonal heavy rainfall
8
Flat grassland in tropical regions
9
Goods brought in from another country
10
Large natural elevation of earth