横向
1
Seasonal heavy rainfall
4
Area where water covers the soil
5
Long-term weather patterns of an area
6
Line dividing two countries
10
One of seven major landmasses
11
Mountain that can erupt with lava
纵向
2
Vast body of salt water
3
Cold treeless Arctic plain
7
Large area covered with trees
8
Goods brought in from another country
9
Region surrounding the North Pole