横向
1
Visual representation of an area
3
Line dividing two countries
4
Region between the two tropic lines
6
Region surrounding the North Pole
7
Largest ocean on Earth
9
Seasonal heavy rainfall
纵向
2
Goods sold to another country
3
Low-lying land surrounded by higher ground
5
Flat grassland in tropical regions
6
Height above sea level
8
Land surrounded by water