横向
1
Half of the Earth
3
Mountain that can erupt with lava
6
Physical features of land
8
Goods sold to another country
9
Flat grassland in tropical regions
10
Ridge of rock or coral near the surface
11
Steep rock face at edge of land
纵向
2
Goods brought in from another country
4
Large slow-moving mass of ice
5
Imaginary line around the middle of Earth
7
Deep narrow valley with steep sides
12
Height above sea level