横向
1
Largest river in South America
4
Region surrounding the North Pole
5
Height above sea level
6
Raised area of land, smaller than a mountain
9
Dry land with little rainfall
11
Piece of land jutting into the sea
纵向
2
Distance north or south of equator
3
Long-term weather patterns of an area
7
Ocean between Americas and Europe/Africa
8
Flat grassland in tropical regions
10
Large area covered with trees
12
Body of water surrounded by land