横向
1
Half of the Earth
6
Physical features of land
7
Line dividing two countries
8
Region surrounding the North Pole
10
Dry land with little rainfall
11
Large body of water partly enclosed by land
纵向
2
Largest river in South America
3
Land surrounded by water on three sides
4
Height above sea level
5
Distance east or west of prime meridian
9
Low-lying land surrounded by higher ground