横向
1
Dry land with little rainfall
4
Vast body of salt water
5
Deep narrow valley with steep sides
8
Largest hot desert in the world
9
Low-lying land surrounded by higher ground
10
Landform where river meets the sea
纵向
2
Chain or group of islands
3
Ridge of rock or coral near the surface
6
Low area between mountains
7
Ocean between Americas and Europe/Africa