横向
1
Ball of burning gas in space
3
Unit of electric potential
4
Reddish electrical conductor
6
Substance with pH below 7
纵向
2
Force that attracts objects together
4
Basic unit of life
5
Unit of power
7
Chemical element in table salt
Ball of burning gas in space
Unit of electric potential
Reddish electrical conductor
Substance with pH below 7
Force that attracts objects together
Basic unit of life
Unit of power
Chemical element in table salt