横向
1
Largest river in South America
3
One of seven major landmasses
5
Flat grassland in tropical regions
6
Visual representation of an area
9
Goods brought in from another country
10
Land surrounded by water
纵向
2
Region between the two tropic lines
4
Largest hot desert in the world
7
Mountain that can erupt with lava
8
Long-term weather patterns of an area
11
Body of water surrounded by land