横向
1
Flat elevated area of land
5
Low-lying land surrounded by higher ground
6
Region surrounding the North Pole
7
Large area covered with trees
8
Height above sea level
9
Deep narrow valley with steep sides
纵向
2
Mountain that can erupt with lava
3
Dry land with little rainfall
4
Large natural elevation of earth
5
Line dividing two countries
10
Landform where river meets the sea