横向
1
Flat elevated area of land
5
Low-lying land surrounded by higher ground
6
Large natural elevation of earth
7
Ridge of rock or coral near the surface
8
Dry land with little rainfall
9
Physical features of land
纵向
2
Wearing away of land by water or wind
3
Half of the Earth
4
One of seven major landmasses
10
Cold treeless Arctic plain
11
Area where water covers the soil