横向
1
Large area covered with trees
3
Raised area of land, smaller than a mountain
5
Area where water covers the soil
6
Largest ocean on Earth
7
Line dividing two countries
8
Where river meets the sea
12
Ocean between Americas and Europe/Africa
纵向
2
Large slow-moving mass of ice
4
One of seven major landmasses
6
Flat elevated area of land
9
Cold treeless Arctic plain
10
Distance east or west of prime meridian
11
Vast body of salt water
13
Largest river in South America