横向
1
Ridge of rock or coral near the surface
4
Vast body of salt water
5
Visual representation of an area
7
Land surrounded by water on three sides
12
Large natural stream of water
纵向
2
Largest ocean on Earth
3
Narrow sea inlet between cliffs
6
Height above sea level
8
Body of water surrounded by land
9
Raised area of land, smaller than a mountain
10
Cold treeless Arctic plain
11
Deep narrow valley with steep sides