横向
1
Half of the Earth
3
Mountain that can erupt with lava
4
Ocean between Americas and Europe/Africa
8
Deep narrow valley with steep sides
11
Goods brought in from another country
12
Flat elevated area of land
纵向
2
Wearing away of land by water or wind
5
Steep rock face at edge of land
6
Total number of people in an area
7
Ridge of rock or coral near the surface
9
Large natural stream of water
10
Large area covered with trees
13
Largest hot desert in the world