横向
1
Wearing away of land by water or wind
5
Body of water surrounded by land
6
Goods sold to another country
7
Large natural elevation of earth
8
Land surrounded by water
纵向
2
Largest ocean on Earth
3
Region near the equator
4
Land surrounded by water on three sides
9
Largest river in South America
10
Ocean between Americas and Europe/Africa
11
Large area covered with trees