核爆炸后,确保窗户和门的安全性以限制放射性辐射暴露. Secure windows and doors after a nuclear detonation to limit radioactive fallout exposure.

核科学教授建议美国人在爆炸发生后立即封闭窗户和门, 以减少对放射性辐射的暴露. With rising global tensions, a nuclear science professor advises Americans to secure air circulation and seal windows and doors immediately after a detonation to limit exposure to radioactive fallout.