横向
1
Goods brought in from another country
5
Region near the equator
6
Line dividing two countries
10
Flat grassland in tropical regions
12
Distance east or west of prime meridian
纵向
2
Largest ocean on Earth
3
Wearing away of land by water or wind
4
Large natural elevation of earth
7
Piece of land jutting into the sea
8
Distance north or south of equator
9
Mountain that can erupt with lava
11
Where river meets the sea