pellicular alveolus

例句：

1. 1.The lungs are made up of millions of pellicular alveoli.
   肺部由数以百万计的小叶肺泡组成。
2. 2.Pneumonia is a condition that affects the pellicular alveoli.
   肺炎是一种影响小叶肺泡的状况。
3. 3. During sleep, the alveoli in the lungs expand to increase oxygen intake.
   在睡眠时，肺部的小叶肺泡会扩张以增加氧气摄入。