横向
1
Large natural stream of water
4
Deep narrow valley with steep sides
5
Goods brought in from another country
6
Region near the equator
6
Region between the two tropic lines
7
Largest ocean on Earth
8
Land surrounded by water
9
Goods sold to another country
纵向
2
Cold treeless Arctic plain
3
Long-term weather patterns of an area
4
Tool for finding directions