横向
1
Large natural stream of water
4
City that is seat of government
5
Wearing away of land by water or wind
6
Largest river in South America
8
Largest hot desert in the world
纵向
2
Landform where river meets the sea
3
Narrow sea inlet between cliffs
4
Piece of land jutting into the sea
5
Where river meets the sea
7
Raised area of land, smaller than a mountain