The conduction band is the energy region where electrons can move freely.

The computer has frozen, so it needs to be restarted.

The computer froze, so I restarted it.

He is a person who is strict in morality.

He made a bronze sculpture.

I can't find my mobile phone.

As a campaigner, he is promoting a healthy lifestyle.

We have started a large-scale mobilization.

The movement of that robot is just like a human.

The reaction to his actions was strong.