横向
1
Natural satellite of Earth
3
Ball of burning gas in space
4
Particle of light
7
The Red Planet
8
Reddish electrical conductor
11
Unit of energy
12
Absolute temperature scale unit
纵向
2
Center of an atom or cell
4
Positive particle in nucleus
5
Disturbance that transfers energy
6
Biological catalyst
9
Mass per unit volume
10
Substance with pH above 7