fireproof structure

例句：

1. 1. The building is designed to be fireproof to ensure the safety of occupants.
   这座建筑被设计成防火的，以确保居住者的安全。
2. 2. The new fireproof door is a must-have for any home with young children.
   新的防火门是任何有小孩的家庭的必备品。
3. 3. The engineers worked tirelessly to make the fireproof system more efficient.
   工程师们努力工作，使防火系统更加高效。