横向
1
Particle of light
5
Substance with pH below 7
6
Ball of burning gas in space
7
Basic unit of life
8
Nerve cell in the brain
纵向
2
Solid with repeating atomic pattern
3
Hottest planet in solar system
4
Second lightest element
Particle of light
Substance with pH below 7
Ball of burning gas in space
Basic unit of life
Nerve cell in the brain
Solid with repeating atomic pattern
Hottest planet in solar system
Second lightest element