横向
1
Unit of force
4
Infectious microscopic agent
5
Amplified beam of light
纵向
2
Second lightest element
3
Center of an atom or cell
6
Compound containing oxygen
7
Our home planet
8
Tectonic landmass section
Unit of force
Infectious microscopic agent
Amplified beam of light
Second lightest element
Center of an atom or cell
Compound containing oxygen
Our home planet
Tectonic landmass section