横向
1
Seasonal heavy rainfall
5
Total number of people in an area
8
Landform where river meets the sea
纵向
2
Land surrounded by water
3
Wearing away of land by water or wind
4
Cold treeless Arctic plain
5
Land surrounded by water on three sides
6
Half of the Earth
7
Raised area of land, smaller than a mountain
9
Large body of water partly enclosed by land