epiorchium

例句：

1. 1. The doctor performed an epidural to relieve the patient's pain.
   医生进行了硬膜外麻醉以缓解病人的疼痛。
2. 2. The man was found guilty of raping a woman in the epidural.
   这名男子因强奸一名妇女被判有罪。
3. 3. The epidural injection caused him to lose consciousness.
   这种硬膜外注射使他失去了意识。