横向
1
Ridge of rock or coral near the surface
4
Ocean between Americas and Europe/Africa
5
Vast body of salt water
7
Line dividing two countries
9
Large natural stream of water
10
Long-term weather patterns of an area
纵向
2
Large area covered with trees
3
Wearing away of land by water or wind
6
Physical features of land
8
Region near the equator
10
One of seven major landmasses