横向
1
One of seven major landmasses
6
Height above sea level
7
Region surrounding the North Pole
9
Goods sold to another country
10
Largest hot desert in the world
纵向
2
Land surrounded by water
3
Largest ocean on Earth
4
Mountain that can erupt with lava
5
Physical features of land
8
Goods brought in from another country
11
Flat elevated area of land