横向
1
Area where water covers the soil
5
Total number of people in an area
6
Land surrounded by water
7
Ocean between Americas and Europe/Africa
8
Region near the equator
纵向
2
Wearing away of land by water or wind
3
Piece of land jutting into the sea
4
Landform where river meets the sea
5
Land surrounded by water on three sides
7
Region surrounding the North Pole
9
One of seven major landmasses
10
Seasonal heavy rainfall
11
Cold treeless Arctic plain