横向
1
Low area between mountains
4
Largest hot desert in the world
6
Distance east or west of prime meridian
9
Line dividing two countries
纵向
2
Half of the Earth
3
Largest ocean on Earth
5
Mountain that can erupt with lava
7
Imaginary line around the middle of Earth
8
Wearing away of land by water or wind
10
Tool for finding directions