横向
1
Icy body with a tail near the sun
4
Substance with pH above 7
5
Positive particle in nucleus
6
Our home planet
纵向
2
Unit of power
3
Second lightest element
5
Fourth state of matter
7
Unit of electric potential
Icy body with a tail near the sun
Substance with pH above 7
Positive particle in nucleus
Our home planet
Unit of power
Second lightest element
Fourth state of matter
Unit of electric potential