横向
1
Half of the Earth
2
Steep rock face at edge of land
7
Line dividing two countries
8
Wearing away of land by water or wind
纵向
2
One of seven major landmasses
3
Low-lying land surrounded by higher ground
4
Imaginary line around the middle of Earth
5
Large natural stream of water
6
Tool for finding directions
9
Area where water covers the soil
10
Deep narrow valley with steep sides