横向
1
Dry land with little rainfall
3
Tool for finding directions
4
Land surrounded by water
7
Region between the two tropic lines
9
Ridge of rock or coral near the surface
10
Largest river in South America
纵向
2
Distance east or west of prime meridian
3
One of seven major landmasses
5
Where river meets the sea
6
Seasonal heavy rainfall
8
Low area between mountains