横向
1
Our home planet
5
Natural satellite of Earth
6
Substance with pH above 7
8
Preserved remains of ancient life
9
Hottest planet in solar system
纵向
2
Second lightest element
3
The Red Planet
4
Form of thermal energy
7
Unit of heredity
Our home planet
Natural satellite of Earth
Substance with pH above 7
Preserved remains of ancient life
Hottest planet in solar system
Second lightest element
The Red Planet
Form of thermal energy
Unit of heredity