横向
1
Line dividing two countries
4
Flat elevated area of land
5
Visual representation of an area
6
Goods brought in from another country
7
Largest river in South America
10
Region surrounding the North Pole
纵向
2
Half of the Earth
3
Body of water surrounded by land
4
Largest ocean on Earth
8
Large area covered with trees
9
One of seven major landmasses
11
Largest hot desert in the world