横向
1
Large natural stream of water
3
Largest ocean on Earth
7
Distance east or west of prime meridian
8
Raised area of land, smaller than a mountain
9
Ridge of rock or coral near the surface
10
Region between the two tropic lines
纵向
2
Flat grassland in tropical regions
4
Goods sold to another country
5
Land surrounded by water on three sides
6
City that is seat of government