横向
1
Large natural stream of water
4
Region near the equator
6
Landform where river meets the sea
7
Vast body of salt water
8
Height above sea level
9
Half of the Earth
10
Distance east or west of prime meridian
12
Land surrounded by water on three sides
纵向
2
Largest hot desert in the world
3
One of seven major landmasses
5
Dry land with little rainfall
11
Large slow-moving mass of ice
13
Largest river in South America