横向
1
Raised area of land, smaller than a mountain
4
Half of the Earth
5
Largest river in South America
10
Seasonal heavy rainfall
11
Piece of land jutting into the sea
纵向
2
Large natural stream of water
3
Body of water surrounded by land
6
Deep narrow valley with steep sides
7
Large slow-moving mass of ice
8
Dry land with little rainfall
9
Total number of people in an area
12
Largest hot desert in the world