横向
1
Vast body of salt water
4
One of seven major landmasses
6
Largest hot desert in the world
9
City that is seat of government
纵向
2
Region between the two tropic lines
3
Deep narrow valley with steep sides
5
Large slow-moving mass of ice
6
Flat grassland in tropical regions
7
Goods sold to another country
8
Cold treeless Arctic plain