横向
1
Line dividing two countries
3
Largest ocean on Earth
4
Region surrounding the North Pole
7
Seasonal heavy rainfall
11
Largest river in South America
纵向
2
Region between the two tropic lines
5
Distance north or south of equator
6
Where river meets the sea
8
Goods sold to another country
9
City that is seat of government
10
Region near the equator