横向
1
Goods brought in from another country
5
Distance north or south of equator
6
Flat grassland in tropical regions
10
Ridge of rock or coral near the surface
纵向
2
Area where water covers the soil
3
Flat elevated area of land
4
Raised area of land, smaller than a mountain
7
Region near the equator
8
Low area between mountains
9
Large slow-moving mass of ice