横向
1
Low-lying land surrounded by higher ground
4
Wearing away of land by water or wind
5
City that is seat of government
6
Largest river in South America
8
Goods brought in from another country
纵向
2
Large area covered with trees
3
Land surrounded by water on three sides
7
Large slow-moving mass of ice
9
Distance north or south of equator
10
Dry land with little rainfall
11
Where river meets the sea
12
Tool for finding directions