adj.坏疽的；腐败的
I felt this was a drastic measure, akin to amputating a gangrenous limb to save a patient's life. 我觉得这好像是一个极端的做法，就像为了救患者一命而切断坏疽的肢体。
He agreed to have an operation to amputate his left foot which had become gangrenous. 他同意做手术，截除坏疽的左脚。
