横向
1
Element found in all living things
4
Tectonic landmass section
5
Curved glass that refracts light
7
Our home planet
纵向
2
Ball of burning gas in space
3
Mass per unit volume
4
Particle of light
6
Gas essential for breathing
Element found in all living things
Tectonic landmass section
Curved glass that refracts light
Our home planet
Ball of burning gas in space
Mass per unit volume
Particle of light
Gas essential for breathing