横向
1
Large area covered with trees
4
Long-term weather patterns of an area
5
Flat grassland in tropical regions
6
Half of the Earth
8
Distance north or south of equator
9
Goods brought in from another country
11
Total number of people in an area
12
Large slow-moving mass of ice
13
Ridge of rock or coral near the surface
纵向
1
Narrow sea inlet between cliffs
2
Cold treeless Arctic plain
3
One of seven major landmasses
7
Largest hot desert in the world
10
Where river meets the sea