横向
1
Ball of burning gas in space
3
Center of an atom or cell
6
Unit of energy
7
Smallest unit of an element
纵向
2
Particle of light
4
Naturally occurring inorganic solid
5
The Red Planet
8
Nerve cell in the brain
9
Biological catalyst
Ball of burning gas in space
Center of an atom or cell
Unit of energy
Smallest unit of an element
Particle of light
Naturally occurring inorganic solid
The Red Planet
Nerve cell in the brain
Biological catalyst