横向
1
One of seven major landmasses
7
Vast body of salt water
8
Large area covered with trees
9
Ridge of rock or coral near the surface
10
Large slow-moving mass of ice
纵向
2
Region surrounding the North Pole
3
Height above sea level
4
Imaginary line around the middle of Earth
5
Wearing away of land by water or wind
6
Seasonal heavy rainfall