横向
1
Deep narrow valley with steep sides
5
Physical features of land
6
Ocean between Americas and Europe/Africa
11
One of seven major landmasses
13
Narrow sea inlet between cliffs
纵向
2
Landform where river meets the sea
3
Low area between mountains
4
Flat grassland in tropical regions
7
Land surrounded by water on three sides
8
Large body of water partly enclosed by land
9
Total number of people in an area
10
Steep rock face at edge of land
12
Where river meets the sea