amputator

例句：

1. 1.The doctor performed the amputation on his injured leg.
   医生为他受伤的腿进行了截肢手术。
2. 2. The amputator carefully removed the prosthetic limb from the patient's body.
   截肢者小心翼翼地从病人的身体上取出假肢。
3. 3.The amputator had to perform several surgeries on the patient before they could walk again.
   截肢者在病人再次能够走路之前不得不进行几次手术。