横向
1
Ocean between Americas and Europe/Africa
5
Wearing away of land by water or wind
6
Line dividing two countries
7
Raised area of land, smaller than a mountain
9
Landform where river meets the sea
纵向
2
Large slow-moving mass of ice
3
Piece of land jutting into the sea
4
Cold treeless Arctic plain
8
Largest ocean on Earth
10
Low area between mountains