横向
1
Deep narrow valley with steep sides
4
Landform where river meets the sea
5
Land surrounded by water on three sides
6
Region near the equator
7
One of seven major landmasses
纵向
2
Largest hot desert in the world
3
Mountain that can erupt with lava
8
Ridge of rock or coral near the surface
9
Raised area of land, smaller than a mountain
10
Area where water covers the soil
11
Large natural elevation of earth
12
Vast body of salt water