横向
1
Vast body of salt water
4
Low-lying land surrounded by higher ground
5
Ridge of rock or coral near the surface
6
Landform where river meets the sea
7
Deep narrow valley with steep sides
8
Land surrounded by water on three sides
9
Large area covered with trees
纵向
2
Wearing away of land by water or wind
3
Mountain that can erupt with lava
6
Dry land with little rainfall
7
City that is seat of government