横向
1
Path of a planet around the sun
4
Our home planet
5
Particle of light
8
Chemical element in table salt
9
Gas form of a liquid
纵向
2
Positive particle in nucleus
3
Second lightest element
6
Unit of power
7
Compound containing oxygen
Path of a planet around the sun
Our home planet
Particle of light
Chemical element in table salt
Gas form of a liquid
Positive particle in nucleus
Second lightest element
Unit of power
Compound containing oxygen