横向
1
Positive particle in nucleus
4
Preserved remains of ancient life
5
Form of thermal energy
8
Our home planet
纵向
2
Infectious microscopic agent
3
Nerve cell in the brain
6
Path of a planet around the sun
7
Ball of burning gas in space
Positive particle in nucleus
Preserved remains of ancient life
Form of thermal energy
Our home planet
Infectious microscopic agent
Nerve cell in the brain
Path of a planet around the sun
Ball of burning gas in space