横向
1
Land surrounded by water on three sides
6
Height above sea level
7
Chain or group of islands
9
Largest hot desert in the world
纵向
2
Goods sold to another country
3
Visual representation of an area
4
Goods brought in from another country
5
Region between the two tropic lines
8
Flat grassland in tropical regions
10
Largest river in South America
11
Low-lying land surrounded by higher ground
12
Large natural stream of water