横向
1
Land surrounded by water on three sides
4
Raised area of land, smaller than a mountain
6
Physical features of land
7
Large body of water partly enclosed by land
8
Line dividing two countries
纵向
1
Total number of people in an area
2
Largest ocean on Earth
3
Flat elevated area of land
5
Where river meets the sea
9
Region surrounding the North Pole