oxygen mask
英 [ˈɒksɪdʒən mɑːsk]
美 [ˈɑːksɪdʒən mæsk]
n. 氧气面具; 氧气面罩
牛津词典
noun
- 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
柯林斯词典
- 氧气面具；氧气罩
Anoxygen maskis a device that is connected to a cylinder of oxygen by means of a tube. It is placed over the nose and mouth of someone who is having difficulty in breathing in order to help them breathe more easily.
英英释义
noun
- a breathing device that is placed over the mouth and nose