oxygen mask

美 
英 
  • n.氧气面具;氧气面罩
  • 网络氧气罩;输氧面罩;氧气口罩
复数: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

例句

释义:
类别:全部全部,口语口语,书面语书面语,标题标题,技术技术
来源:全部全部,字典字典,网络网络
难度:全部全部,简单简单,中等中等,