横向
1
Raised area of land, smaller than a mountain
4
Landform where river meets the sea
6
Height above sea level
7
Wearing away of land by water or wind
9
Largest ocean on Earth
10
Deep narrow valley with steep sides
纵向
2
One of seven major landmasses
3
Area where water covers the soil
5
Narrow sea inlet between cliffs
8
Land surrounded by water