横向
1
Chain or group of islands
6
Area where water covers the soil
7
Dry land with little rainfall
10
Ocean between Americas and Europe/Africa
12
Ridge of rock or coral near the surface
纵向
2
Large slow-moving mass of ice
3
Land surrounded by water on three sides
4
Region near the equator
5
Raised area of land, smaller than a mountain
8
Wearing away of land by water or wind
9
Large area covered with trees
11
Flat grassland in tropical regions
13
Cold treeless Arctic plain