n. a device (such as a fan) that introduces fresh air or expels foul air
n. 通风设备, 送风机, 换气扇
[医] 通风机
1. The hospital placed a ventilator next to the patient's bed.
医院在病人的床旁放置了一个呼吸机。
2. The doctor explained how the ventilator helps people breathe.
医生解释了呼吸机是如何帮助人们呼吸的。
3. During the pandemic, many patients needed a ventilator to survive.
在疫情期间，许多患者需要呼吸机才能生存。