横向
1
Largest hot desert in the world
4
Line dividing two countries
6
Landform where river meets the sea
7
Wearing away of land by water or wind
11
Total number of people in an area
13
Goods sold to another country
纵向
2
Physical features of land
3
Visual representation of an area
5
Piece of land jutting into the sea
8
Flat grassland in tropical regions
9
Mountain that can erupt with lava
10
Region between the two tropic lines
12
Land surrounded by water
14
Distance north or south of equator