ventilating pit

例句：

1. 1. Theventilating pit is located at thebottom of the building, providing fresh airfor everyone.
   通风井位于建筑物底部，为每个人提供新鲜空气。
2. 2. The ventilating pit was designedto improve air circulation in theroom.
   通风井的设计旨在改善房间的气流。
3. 3. The ventilating pit was closeddue to safety concerns.
   由于安全担忧，通风井被关闭了。