英语语法分析

Tendons and Bursae.

肌腱和滑囊。

Bursae appeared at an rate of 43.3% in the old ruptured Achilles tendons.

陈旧性跟腱断裂的断端滑囊出现率是43.3%。

The bursae act as cushioning to allow smooth gliding between these structures.

滑囊起缓冲作用，以保证两个结构的通畅滑动。