横向
1
Second lightest element
4
Curved glass that refracts light
7
Positive particle in nucleus
纵向
2
Blocking of light by a celestial body
3
Icy body with a tail near the sun
5
Infectious microscopic agent
6
Unit of force
8
Our home planet
Second lightest element
Curved glass that refracts light
Positive particle in nucleus
Blocking of light by a celestial body
Icy body with a tail near the sun
Infectious microscopic agent
Unit of force
Our home planet