横向
1
Distance east or west of prime meridian
5
Large area covered with trees
6
Ocean between Americas and Europe/Africa
8
Half of the Earth
9
Narrow sea inlet between cliffs
12
Large natural elevation of earth
纵向
2
Region near the equator
3
Cold treeless Arctic plain
4
Vast body of salt water
7
Dry land with little rainfall
10
Low area between mountains
11
Low-lying land surrounded by higher ground
13
Large slow-moving mass of ice
14
Mountain that can erupt with lava
15
Largest ocean on Earth