横向
1
Group of similar cells
5
Natural satellite of Earth
6
Path of a planet around the sun
8
Biological catalyst
纵向
2
Unit of electric potential
3
Hottest planet in solar system
4
Icy body with a tail near the sun
7
Second lightest element
Group of similar cells
Natural satellite of Earth
Path of a planet around the sun
Biological catalyst
Unit of electric potential
Hottest planet in solar system
Icy body with a tail near the sun
Second lightest element