横向
1
Large natural stream of water
5
Largest river in South America
6
Goods brought in from another country
8
Area where water covers the soil
10
City that is seat of government
纵向
2
Total number of people in an area
3
Distance east or west of prime meridian
4
Ridge of rock or coral near the surface
7
Region near the equator
9
Imaginary line around the middle of Earth