横向
1
Body of water surrounded by land
4
Area where water covers the soil
5
Tool for finding directions
6
Flat grassland in tropical regions
9
Seasonal heavy rainfall
纵向
2
Height above sea level
3
Wearing away of land by water or wind
7
Low-lying land surrounded by higher ground
8
Physical features of land
10
Large natural stream of water
11
Large area covered with trees
12
Dry land with little rainfall