横向
1
Physical features of land
4
Narrow sea inlet between cliffs
7
Flat elevated area of land
8
Imaginary line around the middle of Earth
9
Largest river in South America
纵向
2
Distance east or west of prime meridian
3
Large natural stream of water
5
Region surrounding the North Pole
6
Cold treeless Arctic plain
7
Land surrounded by water on three sides
10
Ridge of rock or coral near the surface