横向
1
Imaginary line around the middle of Earth
5
Large slow-moving mass of ice
6
Large natural stream of water
7
Ridge of rock or coral near the surface
8
Landform where river meets the sea
9
Region between the two tropic lines
纵向
2
Region surrounding the North Pole
3
Half of the Earth
4
Line dividing two countries
10
Largest ocean on Earth
