横向
1
Low area between mountains
4
Flat elevated area of land
5
Wearing away of land by water or wind
6
Area where water covers the soil
7
City that is seat of government
8
Region between the two tropic lines
12
Large slow-moving mass of ice
13
Landform where river meets the sea
纵向
2
Raised area of land, smaller than a mountain
3
Half of the Earth
7
One of seven major landmasses
9
Distance north or south of equator
10
Largest hot desert in the world
11
Steep rock face at edge of land