横向
1
Large area covered with trees
3
Chain or group of islands
4
Wearing away of land by water or wind
6
Region between the two tropic lines
纵向
1
Narrow sea inlet between cliffs
2
Dry land with little rainfall
5
Distance east or west of prime meridian
7
Largest river in South America
8
Large body of water partly enclosed by land
9
Total number of people in an area
10
Visual representation of an area
11
Physical features of land
12
Land surrounded by water