横向
1
Center of an atom or cell
4
Absolute temperature scale unit
5
Smallest unit of an element
8
Ball of burning gas in space
纵向
2
Our home planet
3
Infectious microscopic agent
6
Compound containing oxygen
7
Molten rock beneath Earth surface
Center of an atom or cell
Absolute temperature scale unit
Smallest unit of an element
Ball of burning gas in space
Our home planet
Infectious microscopic agent
Compound containing oxygen
Molten rock beneath Earth surface