常见例句用作名词 (n.)They can block air passages or sinus channels to cause a variety of grief.它们能阻塞气道或鼻窦的通道，造成各种痛苦。It is commonly caused by chronic alveolar hypoventilation or air way mucus plugging.究其原因，可能为肺泡慢性通气不足或气道分泌物阻塞。 返回 air-flue