In this coal mine, we are always checking the condition of the face.

He always keeps a smile on his face.

He works in a coal mine.

I'm worried about his health condition.

I check my emails every day.

I check my emails every morning.

He plays the role of a canary in a coal mine in our team.

He ended up in a vegetative state after the accident.

I made an off-air recording of last night's radio program.

He likes to record radio programs off-air.