横向
1
Land surrounded by water on three sides
3
Ridge of rock or coral near the surface
5
Dry land with little rainfall
6
Area where water covers the soil
7
Large natural elevation of earth
8
Largest river in South America
纵向
1
Flat elevated area of land
2
Low-lying land surrounded by higher ground
4
Seasonal heavy rainfall
5
Landform where river meets the sea
9
Long-term weather patterns of an area