横向
1
Chain or group of islands
7
Long-term weather patterns of an area
9
Cold treeless Arctic plain
11
Seasonal heavy rainfall
纵向
2
Large natural stream of water
3
Ridge of rock or coral near the surface
4
Deep narrow valley with steep sides
5
Land surrounded by water
6
Large natural elevation of earth
7
Steep rock face at edge of land
8
Flat grassland in tropical regions
10
Ocean between Americas and Europe/Africa