In physics, electrons absorb energy and move from the valence band to the conduction band.

Kinya is my best friend.

My personal thought is that everyone should be treated equally.

He values his private life.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

When I first met her, I introduced myself saying, 'I am Japanese.'

We prioritize customer satisfaction above all else.