横向
1
Where river meets the sea
4
Goods sold to another country
5
Land surrounded by water
6
Large natural stream of water
11
Half of the Earth
纵向
2
Seasonal heavy rainfall
3
Low-lying land surrounded by higher ground
7
Largest river in South America
8
Land surrounded by water on three sides
9
Region between the two tropic lines
10
Landform where river meets the sea