横向
1
Chain or group of islands
4
Large area covered with trees
7
Visual representation of an area
8
Largest river in South America
10
Physical features of land
纵向
2
Goods brought in from another country
3
Largest hot desert in the world
4
Narrow sea inlet between cliffs
5
Ridge of rock or coral near the surface
6
Total number of people in an area
9
Line dividing two countries
11
Region between the two tropic lines