横向
1
Landform where river meets the sea
3
Total number of people in an area
4
Flat grassland in tropical regions
5
Large body of water partly enclosed by land
11
Raised area of land, smaller than a mountain
纵向
2
Body of water surrounded by land
3
Flat elevated area of land
6
Low area between mountains
7
Region near the equator
8
Where river meets the sea
9
Steep rock face at edge of land
10
Area where water covers the soil
12
One of seven major landmasses