横向
1
Wearing away of land by water or wind
6
Largest hot desert in the world
8
Largest ocean on Earth
9
Flat elevated area of land
11
Ocean between Americas and Europe/Africa
纵向
2
Piece of land jutting into the sea
3
Region near the equator
3
Region between the two tropic lines
4
Cold treeless Arctic plain
5
Half of the Earth
7
Raised area of land, smaller than a mountain
10
Low-lying land surrounded by higher ground
12
Land surrounded by water on three sides