横向
1
Flat grassland in tropical regions
5
Large area covered with trees
6
Landform where river meets the sea
7
Region surrounding the North Pole
8
Largest ocean on Earth
9
Goods brought in from another country
纵向
2
Ocean between Americas and Europe/Africa
3
One of seven major landmasses
4
Chain or group of islands
10
Land surrounded by water on three sides
11
Half of the Earth