横向
1
Seasonal heavy rainfall
4
Largest ocean on Earth
7
Largest river in South America
8
Large body of water partly enclosed by land
纵向
2
Where river meets the sea
3
Mountain that can erupt with lava
4
Flat elevated area of land
5
Cold treeless Arctic plain
6
Piece of land jutting into the sea
9
Largest hot desert in the world
10
Total number of people in an area