横向
1
Our home planet
3
Substance with pH above 7
6
Natural satellite of Earth
7
Smallest unit of an element
纵向
2
Center of an atom or cell
4
Particle of light
5
Path of a planet around the sun
8
Naturally occurring inorganic solid
Our home planet
Substance with pH above 7
Natural satellite of Earth
Smallest unit of an element
Center of an atom or cell
Particle of light
Path of a planet around the sun
Naturally occurring inorganic solid