横向
1
Flat elevated area of land
2
Wearing away of land by water or wind
5
Large natural stream of water
6
Mountain that can erupt with lava
8
Piece of land jutting into the sea
9
Where river meets the sea
纵向
2
Imaginary line around the middle of Earth
3
Goods sold to another country
4
Region surrounding the North Pole
7
Largest river in South America
10
Seasonal heavy rainfall