横向
1
Goods sold to another country
3
Land surrounded by water
5
Wearing away of land by water or wind
6
Region surrounding the North Pole
7
Landform where river meets the sea
8
Region between the two tropic lines
纵向
2
Area where water covers the soil
4
Largest hot desert in the world
9
Largest river in South America
10
Piece of land jutting into the sea
11
Largest ocean on Earth
12
Physical features of land