横向
1
Large natural stream of water
5
Land surrounded by water
7
Large body of water partly enclosed by land
8
Imaginary line around the middle of Earth
9
Cold treeless Arctic plain
11
Deep narrow valley with steep sides
12
Where river meets the sea
14
Vast body of salt water
纵向
2
Low area between mountains
3
Long-term weather patterns of an area
4
Narrow sea inlet between cliffs
6
Dry land with little rainfall
10
One of seven major landmasses
13
Low-lying land surrounded by higher ground