横向
1
Ball of burning gas in space
3
Precious yellow metallic element
5
Icy body with a tail near the sun
6
Particle of light
7
Unit of force
10
Substance with pH below 7
纵向
1
Chemical element in table salt
2
Molten rock beneath Earth surface
4
Gas essential for breathing
7
Center of an atom or cell
8
Absolute temperature scale unit
9
Unit of power