横向
1
Large area covered with trees
5
Land surrounded by water
6
Flat grassland in tropical regions
7
Low area between mountains
8
Region near the equator
纵向
2
Body of water surrounded by land
3
Cold treeless Arctic plain
4
Distance east or west of prime meridian
9
Imaginary line around the middle of Earth
10
Largest ocean on Earth
11
One of seven major landmasses