横向
1
Ridge of rock or coral near the surface
3
Large natural elevation of earth
6
Large area covered with trees
7
Largest ocean on Earth
8
Chain or group of islands
9
Steep rock face at edge of land
纵向
2
Largest hot desert in the world
3
Visual representation of an area
4
Largest river in South America
5
Land surrounded by water on three sides
10
Body of water surrounded by land