gangrene
用法要点
句型搭配
作为名词时，常用于描述身体部位或抽象概念的腐败，如“develop gangrene”表示生坏疽；作为动词时较少用，多用于被动语态或比喻义。
介词用法
常与介词“in”连用表示部位，如“gangrene in the leg”；在比喻义中可与“of”搭配，如“gangrene of society”。
语域说明
主要属于医学或正式语域，在口语中较少使用；比喻义多见于文学或政治评论，带有强烈负面色彩。
基础例句
The doctor warned that if left untreated, the wound could develop gangrene.
医生警告说，如果不及时治疗，伤口可能会发展成坏疽。
After the accident, he suffered from gangrene in his leg and needed surgery.
事故后，他的腿部生了坏疽，需要手术。
Poor circulation can increase the risk of gangrene in diabetic patients.
血液循环不良会增加糖尿病患者患坏疽的风险。
高级例句
In medical literature, gangrene is classified into dry and wet types based on tissue appearance.
在医学文献中，坏疽根据组织外观分为干性和湿性两种类型。
The economic policies led to a gangrene of corruption that spread throughout the institution.
这些经济政策导致了腐败的蔓延，像坏疽一样侵蚀了整个机构。
Advanced gangrene often necessitates amputation to prevent systemic infection.
晚期坏疽通常需要截肢以防止全身感染。
高频搭配
verb
adjective
noun
phrase
常见错误
gangrene 作为不可数名词，通常不加冠词“a”，直接使用即可。
在泛指坏疽这种状况时，通常不用定冠词“the”，除非特指某个病例。
近义词辨析
necrosis
necrosis 泛指细胞或组织死亡，是更广泛的医学术语；gangrene 特指因缺血导致的坏死，常伴有感染和腐败，更具描述性。
Necrosis can occur in various tissues, but gangrene specifically refers to necrotic tissue with bacterial invasion.
decay
decay 通常指有机物的自然腐烂过程，如食物或牙齿；gangrene 专指活体组织的病理性坏死，医学上更严重。
Tooth decay is common, but gangrene in a limb is a medical emergency requiring immediate treatment.