横向
1
Preserved remains of ancient life
3
Second lightest element
4
Ball of burning gas in space
6
Amplified beam of light
8
Path of a planet around the sun
纵向
2
Naturally occurring inorganic solid
5
Center of an atom or cell
7
Gas form of a liquid
Preserved remains of ancient life
Second lightest element
Ball of burning gas in space
Amplified beam of light
Path of a planet around the sun
Naturally occurring inorganic solid
Center of an atom or cell
Gas form of a liquid