横向
1
Unit of power
3
Compound containing oxygen
4
Preserved remains of ancient life
6
Second lightest element
7
The Red Planet
纵向
2
Group of similar cells
3
Path of a planet around the sun
5
Fourth state of matter
Unit of power
Compound containing oxygen
Preserved remains of ancient life
Second lightest element
The Red Planet
Group of similar cells
Path of a planet around the sun
Fourth state of matter