横向
1
Large natural elevation of earth
4
Line dividing two countries
6
Wearing away of land by water or wind
7
Tool for finding directions
8
Deep narrow valley with steep sides
10
Region surrounding the North Pole
11
Goods brought in from another country
13
Body of water surrounded by land
纵向
2
Height above sea level
3
Largest hot desert in the world
5
Ocean between Americas and Europe/Africa
9
Large area covered with trees
12
Region between the two tropic lines
14
Region near the equator