横向
1
Wearing away of land by water or wind
5
Height above sea level
7
Ridge of rock or coral near the surface
8
Body of water surrounded by land
11
Dry land with little rainfall
12
Large body of water partly enclosed by land
纵向
2
City that is seat of government
3
Land surrounded by water
4
Region surrounding the North Pole
6
Line dividing two countries
9
Cold treeless Arctic plain
10
Area where water covers the soil