横向
1
Area where water covers the soil
4
Where river meets the sea
5
Largest river in South America
7
Wearing away of land by water or wind
8
Visual representation of an area
10
Large area covered with trees
纵向
2
Flat elevated area of land
3
Seasonal heavy rainfall
6
Deep narrow valley with steep sides
9
Piece of land jutting into the sea
11
One of seven major landmasses
12
Long-term weather patterns of an area