横向
1
Our home planet
4
Ball of burning gas in space
5
Center of an atom or cell
8
Fourth state of matter
9
Unit of electric potential
纵向
2
Hottest planet in solar system
3
Force that attracts objects together
6
Group of similar cells
7
Unit of force
Our home planet
Ball of burning gas in space
Center of an atom or cell
Fourth state of matter
Unit of electric potential
Hottest planet in solar system
Force that attracts objects together
Group of similar cells
Unit of force