横向
1
Cold treeless Arctic plain
4
Largest ocean on Earth
5
Low area between mountains
8
Height above sea level
10
Flat elevated area of land
11
Region surrounding the North Pole
12
Narrow sea inlet between cliffs
纵向
2
Landform where river meets the sea
3
Tool for finding directions
6
Region between the two tropic lines
7
Ocean between Americas and Europe/Africa
9
Piece of land jutting into the sea
13
Physical features of land