Occasionally, there's so much tissue damage that blood vessels break and create blood filled bullae on the skin above gangrenous tissue.

某些情况下，组织损伤较严重而累及血管，会组织表皮形成血性大疱。

Canids have hollow bony structures toward the back of their skulls called auditory bullae that protect the delicate bones of the middle ear.

犬科动物头骨后部有中空骨结构，称为听觉大，可保护中耳脆弱骨骼。

In tall, thin individuals and long-term smokers, however, the distribution of lung stress changes, making them more prone to lung bullae and blebs, which are weak areas.

然而，高瘦人和长期吸烟者中，肺应力发生了变化，使他们更容易出现肺大疱和气，这些都是薄弱区域。

In the skin, Marfan syndrome can cause stretch marks, and in the lung it can cause bullae to form, which are large spaces that replace the normal architecture of the lungs and can cause a pneumothorax to form.

马方综合征皮肤上表现为皮纹，肺上表现为肺大疱形成；肺大疱巨大体积占据了肺正常结构，也可能引起气胸。