单词	oxygen mask
释义	oxygen mask noun A mask placed over the nose and mouth and connected to a supply of oxygen, used when the body is not able to gain enough oxygen by breathing air, for example at high altitudes, or because of a medical condition.When you wake up you may find that you have an oxygen mask over your mouth and nose.... The next thing I knew I was in a hospital bed with an oxygen mask over my mouth and nose. A man is lying in bed in a Catholic hospital with an oxygen mask over his mouth.
随便看	hand-me-down hand mill hand mold hand money hand mould hand muff hand mule hand nail handoff Hand of Glory hand-operated hand organ hand organist handout hand over handover hand over fist hand over hand hand-painted hand-paper handpass handphone hand-pick handpiece hand-pike

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。