横向
1
Line dividing two countries
4
Physical features of land
5
Largest river in South America
6
Land surrounded by water
7
Goods sold to another country
8
Large natural elevation of earth
12
Flat elevated area of land
13
One of seven major landmasses
纵向
2
Distance north or south of equator
3
Vast body of salt water
4
Region near the equator
4
Region between the two tropic lines
9
Body of water surrounded by land
10
Seasonal heavy rainfall
11
Total number of people in an area