横向
1
Goods brought in from another country
5
Region surrounding the North Pole
7
Landform where river meets the sea
8
Large body of water partly enclosed by land
9
Deep narrow valley with steep sides
纵向
2
Raised area of land, smaller than a mountain
3
Largest hot desert in the world
4
Largest ocean on Earth
6
Cold treeless Arctic plain
10
Large area covered with trees
11
Long-term weather patterns of an area
12
Piece of land jutting into the sea