adj.壞疽的；腐敗的
I felt this was a drastic measure, akin to amputating a gangrenous limb to save a patient's life. 我覺得這好像是一個極端的做法，就像為了救患者一命而切斷壞疽的肢體。
He agreed to have an operation to amputate his left foot which had become gangrenous. 他同意做手術，截除壞疽的左腳。
