横向
1
Region near the equator
3
Land surrounded by water
5
Imaginary line around the middle of Earth
6
Cold treeless Arctic plain
7
Seasonal heavy rainfall
8
Largest river in South America
13
Large slow-moving mass of ice
纵向
2
Total number of people in an area
3
Goods brought in from another country
4
Piece of land jutting into the sea
9
Region surrounding the North Pole
10
Largest hot desert in the world
11
Dry land with little rainfall
12
Low-lying land surrounded by higher ground