roof ventilater

例句：

1. 1. The roof ventilater helps to keep the room cool during summer.
   屋顶通风器有助于在夏天保持房间凉爽。
2. 2. The new roof ventilater is more energy-efficient than the old one.
   新的屋顶通风器比旧的更节能。
3. 3. The roof ventilater was installed to improve air circulation in the attic.
   安装屋顶通风器是为了改善阁楼的空气流通。