横向
1
Height above sea level
5
Flat grassland in tropical regions
7
Land surrounded by water
8
Vast body of salt water
12
Flat elevated area of land
纵向
2
Largest hot desert in the world
3
Line dividing two countries
4
Landform where river meets the sea
6
Dry land with little rainfall
9
Chain or group of islands
10
Body of water surrounded by land
11
Low area between mountains