横向
1
Large slow-moving mass of ice
5
Largest ocean on Earth
7
Large area covered with trees
8
Ridge of rock or coral near the surface
9
Distance east or west of prime meridian
12
Flat grassland in tropical regions
14
Piece of land jutting into the sea
纵向
2
Chain or group of islands
3
Largest river in South America
4
Physical features of land
6
Wearing away of land by water or wind
10
Distance north or south of equator
11
Line dividing two countries
13
Area where water covers the soil
15
Steep rock face at edge of land