横向
1
Cold treeless Arctic plain
5
Narrow sea inlet between cliffs
6
Distance north or south of equator
7
Where river meets the sea
纵向
2
Flat elevated area of land
3
One of seven major landmasses
4
Large natural elevation of earth
8
Land surrounded by water on three sides
9
Chain or group of islands
10
Largest ocean on Earth
11
Ridge of rock or coral near the surface