Close inspection shows that they are wearing masks with tiny perforations around the eye and nose area for seeing and breathing.
据近距离观察，原来他们戴了面具，眼部和鼻子附近有许多方便观看和呼吸的小孔。
We should, however, be breathing from the diaphragm, an area between the stomach and chest. Breathing in this way takes less effort, maximizes oxygen intake and relaxes both body and mind.
我们应该从腹部和胸腔之间的横膈膜呼吸，这样能增加氧分摄入，同时放松身心。
Start to consciously notice your breathing by placing your hand on your stomach and train yourself to bring your breath into this area.
开始注意你的呼吸，把手放在腹部，训练自己将气带到这个部位。
FIRST AID FOR INHALATION: Remove from dusty area to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen. Call a physician.
吸入急救：将受害者抬到具有新鲜空气的场所去。如果没有了呼吸，给予人工呼吸；如果呼吸困难，输氧；就医诊治。
FIRST AID FOR INHALATION: Remove from dusty area to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen. Call a physician.
吸入急救：将受害者抬到具有新鲜空气的场所去。如果没有了呼吸，给予人工呼吸；如果呼吸困难，输氧；就医诊治。
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