横向
1
Raised area of land, smaller than a mountain
3
Flat elevated area of land
4
Cold treeless Arctic plain
5
Distance north or south of equator
6
Ocean between Americas and Europe/Africa
7
Largest ocean on Earth
8
One of seven major landmasses
11
Vast body of salt water
纵向
2
Chain or group of islands
3
Total number of people in an area
9
Mountain that can erupt with lava
10
Large area covered with trees