横向
1
Tool for finding directions
5
Low-lying land surrounded by higher ground
6
Cold treeless Arctic plain
8
Steep rock face at edge of land
9
Height above sea level
10
Large slow-moving mass of ice
纵向
2
Goods brought in from another country
3
Goods sold to another country
4
Dry land with little rainfall
7
Region near the equator
8
Long-term weather patterns of an area