横向
1
Region surrounding the North Pole
5
Body of water surrounded by land
6
Wearing away of land by water or wind
7
One of seven major landmasses
8
Large natural stream of water
9
Seasonal heavy rainfall
纵向
2
Vast body of salt water
3
Deep narrow valley with steep sides
4
Large slow-moving mass of ice
10
Goods brought in from another country
11
Land surrounded by water