1
gangrene sth
及物用法，表示“使（身体组织）生坏疽”，常用于医学语境。
The frostbite gangrened his toes.
冻伤使他的脚趾生了坏疽。
生坏疽；患坏疽；坏死
gangrenes — third person singular of gangrene
先理解核心含义，再看它在真实句子里的用法。
生坏疽；患坏疽；坏死
become affected with gangrene; undergo necrosis
The frostbite gangrened his toes.
冻伤使他的脚趾生了坏疽。
使生坏疽；使患坏疽
To produce gangrene in.
生坏疽；患坏疽
To be affected with gangrene.
使腐化；使堕落
To corrupt; To cause to become degenerate.
发生坏死
undergo necrosis
gangrene
Base
原形
gangrenes
3rd person
第三人称单数
gangrening
-ing
现在分词
gangrened
Past
过去式
gangrened
Past participle
过去分词
The infection gangrenes the surrounding tissue if left untreated.
如果不治疗，感染会使周围组织坏疽。
His toes gangrened after the severe frostbite.
他的脚趾在严重冻伤后坏疽了。
The wound has gangrened, so the doctor scheduled surgery.
伤口已经坏疽，因此医生安排了手术。
规则动词，常用于医疗语境，表示（使）生坏疽或坏死。
If the infection is not treated, the tissue will gangrene and eventually die.
如果感染得不到治疗，组织就会生坏疽并最终坏死。
The severe injury gangrened his lower leg within days.
那次严重受伤使他的小腿在几天内就生了坏疽。
After the bite, the wound began to gangrene, and he needed antibiotics.
被咬之后，伤口开始生坏疽，他需要抗生素。
及物用法，表示“使（身体组织）生坏疽”，常用于医学语境。
The frostbite gangrened his toes.
冻伤使他的脚趾生了坏疽。
不及物用法，表示“发生坏疽、坏死”。
If the blood supply is blocked, the tissue gangrenes within hours.
如果血液供应受阻，组织会在数小时内发生坏疽。
被动语态强调“已发生坏疽”的状态；也可用形容词 gangrenous 表示同样含义。
The injured limb was gangrened beyond recovery and had to be amputated.
受伤的肢体已坏疽到无法恢复，不得不截肢。
Not this
His toes became gangrene after the frostbite.
Use this
His toes gangrened after the frostbite.
表达“生坏疽”时，gangrene 本身可用作不及物动词，过去式为 gangrened；became gangrene 误将 gangrene 当作表语名词/形容词，而这里主语 toes 发生的动作应直接用动词 gangrened。
Not this
The infection caused his wound gangrene.
Use this
The infection caused his wound to gangrene.
cause 后接宾语和带 to 的不定式作补足语，即 cause sth. to do；不能省略 to，也不能把 gangrene 当名词直接跟在宾语后。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
发生坏疽；变成坏疽
If the wound is not cleaned, the tissue may become gangrened.
如果伤口没有得到清洁，组织可能会发生坏疽。
坏疽的肢体；已生坏疽的肢体
The gangrened limb had to be amputated to prevent the infection from spreading.
必须截除已坏疽的肢体，以防感染扩散。
组织发生坏疽；组织坏死
Without adequate blood flow, the tissue gangrenes and must be removed.
没有充足的血液流动，组织会坏疽，必须予以切除。
Use gangrenes naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：一伙(gang)腐肉变绿(green)，正是坏疽(gangrene)。
语域：formal 常见场景：医学/病理语境、文学性正式写作 该动词用法比较正式，多用于医学语境，表示“生坏疽”“使生坏疽”或“坏死”；在文学性文字中偶有“使腐化、使堕落”的引申含义。
这些词都与 gangrene 的结尾元音和辅音 /-iːn/ 相同：green、serene、scene、seen、machine、tangerine 都以 /iːn/ 结尾。注意拼写：gangrene 写作 -rene；serene 也写 -rene；scene 是 -ene；green 是 -ee-；machine/tangerine 是 -ine。容易看错的是 grin（/ɡrɪn/）、gene（/dʒiːn/）和 generation（/ˌdʒɛnəˈreɪʃən/），拼写相近但发音不同。
Dictionary facts from ECDICT, WIKTIONARY.