During the air raids, families hid in the village's bombproofs to stay safe.

The old underground bunker was considered bombproof, so we used it as a shelter during the emergency.

As the sirens wailed, the townspeople scrambled into the bombproof and waited in silence until the danger passed.

The engineers bombproofed the command center before the summit.

Engineers bombproofed the underground data center to protect it from potential explosions.

The engineers are bombproofing the old bunker to ensure it can withstand any explosion.