横向
1
Large natural stream of water
4
Largest ocean on Earth
5
Flat elevated area of land
6
Physical features of land
7
Cold treeless Arctic plain
10
Raised area of land, smaller than a mountain
11
Distance east or west of prime meridian
纵向
2
Imaginary line around the middle of Earth
3
Area where water covers the soil
8
Large natural elevation of earth
9
Goods brought in from another country