横向
1
Vast body of salt water
4
Where river meets the sea
6
Narrow sea inlet between cliffs
7
Wearing away of land by water or wind
8
Landform where river meets the sea
纵向
2
Distance north or south of equator
3
Largest river in South America
5
Cold treeless Arctic plain
9
Region surrounding the North Pole
10
Seasonal heavy rainfall