横向
1
Ball of burning gas in space
4
Center of an atom or cell
7
Amplified beam of light
8
Gas essential for breathing
纵向
2
Substance with pH below 7
3
Form of thermal energy
5
Unit of heredity
6
Measure of matter in an object
Ball of burning gas in space
Center of an atom or cell
Amplified beam of light
Gas essential for breathing
Substance with pH below 7
Form of thermal energy
Unit of heredity
Measure of matter in an object