横向
1
Large natural stream of water
4
Cold treeless Arctic plain
5
Large body of water partly enclosed by land
7
Where river meets the sea
9
Large area covered with trees
10
One of seven major landmasses
11
Narrow sea inlet between cliffs
12
Long-term weather patterns of an area
纵向
2
Land surrounded by water
3
Distance north or south of equator
4
Physical features of land
6
Vast body of salt water
8
Largest hot desert in the world
13
Steep rock face at edge of land
14
Large natural elevation of earth