单词：oxygen mask
oxygen mask的用法和样例：
例句
- An oxygen mask will come down from overhead in case of emergency.如果发生紧急情况，头顶上会放下一只氧气面罩。
- The car with its whirring air conditioning was like an oxygen mask.配备了高功率空调的汽车就像一个氧气面罩。
单词：oxygen mask 相关文章
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介绍: smog 雾霾 mask 口罩、面膜 A mask is an object normally worn on the face, typically for protection, disguise（伪装）, performance, or entertainment. gas mask 防毒面 oxygen mask 氧气面罩 air purifier /?pj?r?fa??r/ 空气净化器
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