横向
1
Large slow-moving mass of ice
5
Flat grassland in tropical regions
7
Cold treeless Arctic plain
8
Piece of land jutting into the sea
10
Region between the two tropic lines
12
Land surrounded by water on three sides
纵向
2
Goods sold to another country
3
Long-term weather patterns of an area
4
Region surrounding the North Pole
6
Line dividing two countries
9
Landform where river meets the sea
11
Large natural stream of water
13
City that is seat of government