横向
1
Landform where river meets the sea
4
Large natural stream of water
6
Largest river in South America
7
Dry land with little rainfall
9
Large area covered with trees
13
Low area between mountains
纵向
2
Ocean between Americas and Europe/Africa
3
Distance north or south of equator
5
Mountain that can erupt with lava
8
Land surrounded by water on three sides
10
Goods brought in from another country
11
Largest hot desert in the world
12
Half of the Earth