横向
1
Wearing away of land by water or wind
3
Tool for finding directions
5
Vast body of salt water
7
Region surrounding the North Pole
8
Land surrounded by water on three sides
10
Ocean between Americas and Europe/Africa
纵向
2
Cold treeless Arctic plain
3
Deep narrow valley with steep sides
4
Land surrounded by water
6
Piece of land jutting into the sea
9
Low area between mountains
11
Ridge of rock or coral near the surface