横向
1
Body of water surrounded by land
4
Region surrounding the North Pole
5
Total number of people in an area
8
Mountain that can erupt with lava
10
Flat grassland in tropical regions
纵向
2
Piece of land jutting into the sea
3
Vast body of salt water
6
Seasonal heavy rainfall
7
Flat elevated area of land
9
Cold treeless Arctic plain