横向
1
Goods sold to another country
4
Low area between mountains
5
Imaginary line around the middle of Earth
6
Large natural stream of water
7
Tool for finding directions
8
Flat elevated area of land
10
Mountain that can erupt with lava
11
Goods brought in from another country
纵向
1
Where river meets the sea
2
Region between the two tropic lines
3
Dry land with little rainfall
9
Cold treeless Arctic plain