词汇	emergency stairs
释义	emergency stairs 🌏紧急楼梯
随便看	defense-in-depth defense in depth for safety defense-in-depth network security system defense-in-depth system defense forces Defense Foreign Disclosure Coordinating Office Defense Foreign Language Program defense form Defense for the English People defense fortifications defense for utilitarianism defense framework Defense Freight Railway Interchange Fleet defense fuel automated management systems Defense Fuel Region Defense Fuel Region-South Defense Fuel Support Point defense function defense fund defense funds defense garrison defense gene defense gene expression defense general staff Defense General Supply Center