major air cell

例句：

1. 1. Themajor air cell is responsible for the exchangeof gases between the lungs andthe bloodstream.
   主要空气细胞负责肺部和血液之间的气体交换。
2. 2. Inhaling through the nose canhelp to clear the major aircell, which may contain mucusor other debris.
   通过鼻子吸气可以帮助清除主要空气细胞，该细胞可能包含黏液或其他碎片。
3. 3. The major air cell isa critical component of the respiratory system thatplays a vital role in gas exchange.
   主要空气细胞是呼吸系统的关键组成部分，它在气体交换中起着至关重要的作用。