横向
1
Low-lying land surrounded by higher ground
3
Physical features of land
6
Region surrounding the North Pole
10
Narrow sea inlet between cliffs
纵向
2
Vast body of salt water
3
Region near the equator
4
Line dividing two countries
5
Landform where river meets the sea
7
Largest river in South America
8
One of seven major landmasses
9
Large slow-moving mass of ice