横向
1
Tectonic landmass section
4
Smallest unit of an element
5
Precious yellow metallic element
7
Unit of force
纵向
1
Particle of light
2
Form of thermal energy
3
Gas essential for breathing
6
Path of a planet around the sun
Tectonic landmass section
Smallest unit of an element
Precious yellow metallic element
Unit of force
Particle of light
Form of thermal energy
Gas essential for breathing
Path of a planet around the sun