alveoli

1.alveoli that plug up with phlegm.

被痰堵住的

2.At high magnification, the alveoli in this lung are filled with a smooth to slightly floccular pink material characteristic for pulmonary edema.

高倍镜下，腔内充满粉红色无结构的物质为水肿。

3.The alveoli are well-aerated and contain only an occasional pulmonary macrophage (type II pneumonocyte).

内充满空气，有巨噬细胞（II型上皮细胞）。