横向
1
Substance with pH above 7
3
Group of similar cells
5
Icy body with a tail near the sun
7
Precious yellow metallic element
8
Form of thermal energy
纵向
2
Preserved remains of ancient life
4
Our home planet
6
Unit of energy
Substance with pH above 7
Group of similar cells
Icy body with a tail near the sun
Precious yellow metallic element
Form of thermal energy
Preserved remains of ancient life
Our home planet
Unit of energy