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单词 oxygen mask
释义
oxygen mask
Word forms: oxygen masks
countable noun
An oxygen mask is 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.
There were no oxygen masks and barely any information.
Image of oxygen mask
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更新时间:2024/11/15 11:43:01