横向
1
Large natural stream of water
3
Vast body of salt water
5
Total number of people in an area
6
Mountain that can erupt with lava
7
Piece of land jutting into the sea
9
Height above sea level
纵向
2
Flat grassland in tropical regions
4
One of seven major landmasses
8
Largest hot desert in the world
10
Ocean between Americas and Europe/Africa
11
Goods sold to another country