横向
1
Largest river in South America
5
Chain or group of islands
6
Piece of land jutting into the sea
9
Imaginary line around the middle of Earth
11
Body of water surrounded by land
12
Where river meets the sea
纵向
2
Goods sold to another country
3
Largest ocean on Earth
4
Region surrounding the North Pole
7
Low area between mountains
8
Distance east or west of prime meridian
10
Area where water covers the soil