横向
1
Largest river in South America
2
Large natural stream of water
5
Height above sea level
6
Region near the equator
7
Landform where river meets the sea
9
Large area covered with trees
10
Raised area of land, smaller than a mountain
12
City that is seat of government
13
Seasonal heavy rainfall
纵向
1
Chain or group of islands
3
Body of water surrounded by land
4
Total number of people in an area
8
Largest hot desert in the world
11
Mountain that can erupt with lava