横向
1
Goods brought in from another country
4
Flat grassland in tropical regions
5
Imaginary line around the middle of Earth
8
Physical features of land
纵向
2
Line dividing two countries
3
Distance north or south of equator
5
Where river meets the sea
6
Wearing away of land by water or wind
7
Flat elevated area of land
9
Large area covered with trees