横向
1
Large slow-moving mass of ice
5
Imaginary line around the middle of Earth
7
Wearing away of land by water or wind
8
Area where water covers the soil
9
Flat grassland in tropical regions
14
Goods sold to another country
纵向
2
Height above sea level
3
Largest hot desert in the world
4
Tool for finding directions
6
Where river meets the sea
10
Land surrounded by water
11
One of seven major landmasses
12
Long-term weather patterns of an area
13
Low area between mountains