横向
1
Distance north or south of equator
6
Goods brought in from another country
7
Ocean between Americas and Europe/Africa
8
Cold treeless Arctic plain
10
Wearing away of land by water or wind
纵向
2
Land surrounded by water on three sides
3
Imaginary line around the middle of Earth
4
Low area between mountains
5
Long-term weather patterns of an area
9
Dry land with little rainfall
11
Landform where river meets the sea
12
Raised area of land, smaller than a mountain