横向
1
One of seven major landmasses
7
Largest river in South America
8
Region surrounding the North Pole
9
Raised area of land, smaller than a mountain
纵向
2
Mountain that can erupt with lava
3
Large natural elevation of earth
4
Ridge of rock or coral near the surface
5
Cold treeless Arctic plain
6
Goods brought in from another country
10
City that is seat of government