横向
1
Dry land with little rainfall
4
Flat grassland in tropical regions
6
Ocean between Americas and Europe/Africa
9
Ridge of rock or coral near the surface
11
Chain or group of islands
纵向
2
Tool for finding directions
3
Total number of people in an area
5
Distance north or south of equator
7
Large natural stream of water
8
Land surrounded by water
10
Where river meets the sea
