横向
1
Low area between mountains
4
Largest river in South America
5
Region surrounding the North Pole
6
Half of the Earth
9
Vast body of salt water
10
Land surrounded by water on three sides
纵向
2
Chain or group of islands
3
Goods sold to another country
7
Land surrounded by water
8
Long-term weather patterns of an area
11
Ridge of rock or coral near the surface