横向
1
Mountain that can erupt with lava
3
Region between the two tropic lines
4
Region surrounding the North Pole
6
Large body of water partly enclosed by land
纵向
2
Largest ocean on Earth
3
Cold treeless Arctic plain
5
Total number of people in an area
7
Distance north or south of equator
8
Raised area of land, smaller than a mountain
9
Imaginary line around the middle of Earth