横向
1
Ocean between Americas and Europe/Africa
4
Large natural stream of water
7
Largest river in South America
8
Low-lying land surrounded by higher ground
9
Line dividing two countries
纵向
2
City that is seat of government
3
Region near the equator
3
Region between the two tropic lines
5
Wearing away of land by water or wind
6
Large slow-moving mass of ice