横向
1
Path of a planet around the sun
4
Unit of electric potential
5
Smallest unit of an element
6
Blocking of light by a celestial body
纵向
2
Second lightest element
3
Amplified beam of light
7
Particle of light
8
Nerve cell in the brain
Path of a planet around the sun
Unit of electric potential
Smallest unit of an element
Blocking of light by a celestial body
Second lightest element
Amplified beam of light
Particle of light
Nerve cell in the brain