横向
1
Second lightest element
5
Ball of burning gas in space
6
Form of thermal energy
7
Curved glass that refracts light
纵向
2
Particle of light
3
Tectonic landmass section
4
Measure of matter in an object
8
Chemical element in table salt
Second lightest element
Ball of burning gas in space
Form of thermal energy
Curved glass that refracts light
Particle of light
Tectonic landmass section
Measure of matter in an object
Chemical element in table salt