横向
1
Largest hot desert in the world
4
Total number of people in an area
5
Large natural stream of water
6
Distance north or south of equator
7
Seasonal heavy rainfall
10
Flat elevated area of land
纵向
2
Ridge of rock or coral near the surface
3
Body of water surrounded by land
4
Land surrounded by water on three sides
8
Goods brought in from another country
9
Largest river in South America
11
Steep rock face at edge of land