oxygen mask

US 
UK 
  • n.氧气面具;氧气面罩
  • Web氧气罩;输氧面罩;氧气口罩
Plural Form:oxygen masks  
oxygen mask
n.
1.
氧气面具;氧气面罩a device placed over the nose and mouth through which a person can breathe oxygen , for example in an aircraft or a hospital

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard