横向
1
Chain or group of islands
7
Physical features of land
8
Visual representation of an area
10
Landform where river meets the sea
纵向
2
Largest ocean on Earth
3
Distance east or west of prime meridian
4
Region between the two tropic lines
5
Area where water covers the soil
6
Mountain that can erupt with lava
9
Ridge of rock or coral near the surface
11
Goods sold to another country
12
Goods brought in from another country