横向
1
Large area covered with trees
3
Largest ocean on Earth
5
Imaginary line around the middle of Earth
7
Flat elevated area of land
8
Physical features of land
9
Body of water surrounded by land
12
Vast body of salt water
纵向
2
Goods brought in from another country
4
Land surrounded by water on three sides
6
Chain or group of islands
10
Total number of people in an area
11
Large natural stream of water
13
Region between the two tropic lines