横向
1
Our home planet
4
Biological catalyst
6
Blocking of light by a celestial body
7
Preserved remains of ancient life
纵向
2
Basic unit of life
3
Particle of light
5
Group of similar cells
8
Smallest unit of an element
Our home planet
Biological catalyst
Blocking of light by a celestial body
Preserved remains of ancient life
Basic unit of life
Particle of light
Group of similar cells
Smallest unit of an element