ventilating

例句：

1. 1. The room needs to be ventilated thoroughly before we start work.
   在我们开始工作之前，房间需要彻底通风。
2. 2.The air in the room is not very fresh; it needs to be ventilated.
   房间里的空气不新鲜，需要通风。
3. 3. The factory uses a ventilating system to remove harmful gases from the air.
   工厂使用一个通风系统来从空气中去除有害气体。