横向
1
Substance with pH below 7
4
Basic unit of life
5
Ball of burning gas in space
6
Unit of electric potential
纵向
2
Amplified beam of light
3
Chemical element in table salt
7
Path of a planet around the sun
8
Biological catalyst
Substance with pH below 7
Basic unit of life
Ball of burning gas in space
Unit of electric potential
Amplified beam of light
Chemical element in table salt
Path of a planet around the sun
Biological catalyst