横向
1
Total number of people in an area
6
Tool for finding directions
7
Land surrounded by water
11
Flat grassland in tropical regions
纵向
2
Low area between mountains
3
Large slow-moving mass of ice
4
Low-lying land surrounded by higher ground
5
Deep narrow valley with steep sides
8
Visual representation of an area
9
Vast body of salt water
10
Seasonal heavy rainfall