横向
1
Wearing away of land by water or wind
5
Region between the two tropic lines
6
Goods sold to another country
7
Narrow sea inlet between cliffs
8
Distance north or south of equator
10
Vast body of salt water
11
Physical features of land
纵向
2
Height above sea level
3
Flat grassland in tropical regions
4
Large area covered with trees
9
Raised area of land, smaller than a mountain