横向
1
One of seven major landmasses
6
Flat elevated area of land
8
Piece of land jutting into the sea
9
Half of the Earth
10
Vast body of salt water
纵向
2
Line dividing two countries
3
Deep narrow valley with steep sides
4
Largest river in South America
5
Where river meets the sea
7
Raised area of land, smaller than a mountain