横向
1
Vast body of salt water
5
Ocean between Americas and Europe/Africa
6
Large natural stream of water
8
Piece of land jutting into the sea
10
Largest hot desert in the world
纵向
2
Landform where river meets the sea
3
Low-lying land surrounded by higher ground
4
Line dividing two countries
7
Wearing away of land by water or wind
9
Deep narrow valley with steep sides