May use the towel, clothes and so on to cover the oronasal, maintains the breath is unobstructed, prevents the mist and dust to choke into suffocates.
可以用毛巾、衣服等捂住口鼻，保持呼吸通畅，防止烟尘呛入窒息。
May use the towel, clothes and so on to cover the oronasal, maintains the breath is unobstructed, prevents the mist and dust to choke into suffocates.
可以用毛巾、衣服等捂住口鼻，保持呼吸通畅，防止烟尘呛入窒息。
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