横向
1
Mass per unit volume
4
Fourth state of matter
5
Our home planet
7
Magnetic metallic element
8
Basic unit of life
纵向
2
Unit of heredity
3
Curved glass that refracts light
6
Blocking of light by a celestial body
Mass per unit volume
Fourth state of matter
Our home planet
Magnetic metallic element
Basic unit of life
Unit of heredity
Curved glass that refracts light
Blocking of light by a celestial body