横向
1
Imaginary line around the middle of Earth
5
Distance east or west of prime meridian
6
Low area between mountains
8
Flat grassland in tropical regions
9
Large area covered with trees
10
Distance north or south of equator
13
Region surrounding the North Pole
15
Largest ocean on Earth
纵向
2
Visual representation of an area
3
Flat elevated area of land
4
Large natural stream of water
7
Long-term weather patterns of an area
11
Height above sea level
12
Piece of land jutting into the sea
14
Physical features of land