横向
1
Physical features of land
3
Land surrounded by water
6
Large area covered with trees
7
Large natural elevation of earth
10
Low area between mountains
12
Large natural stream of water
纵向
2
Raised area of land, smaller than a mountain
4
Half of the Earth
5
Cold treeless Arctic plain
8
Line dividing two countries
9
Mountain that can erupt with lava
11
Goods brought in from another country