横向
1
Ocean between Americas and Europe/Africa
4
Large area covered with trees
6
Goods sold to another country
7
Large natural stream of water
9
Region near the equator
11
Largest ocean on Earth
12
Wearing away of land by water or wind
14
Landform where river meets the sea
纵向
2
Half of the Earth
3
Large body of water partly enclosed by land
5
Mountain that can erupt with lava
7
Ridge of rock or coral near the surface
8
Largest river in South America
10
Flat elevated area of land
13
One of seven major landmasses