| 释义 |
knife-edge AHD[nīfʹĕj'] D.J.[ˈnaɪfˌedʒ]K.K.[ˈnaɪfˌɛdʒ]n.（名词）- A sharp cutting edge.刀刃，锋刃：锋利的、切割的刀刃
- A sharp, narrow edge or border:摇摆不定的处境；极微妙的状态：锋利而狭窄的边或边缘："saying lines that teeter on the knife-edge between literature and lunacy"(Vincent Canby)“吟咏着处在文学与疯人呓语徘徊的诗句”(文森特·坎比)
- A wedge of metal used as a low-friction fulcrum for a balancing beam or lever.刃形支承：一种楔形金属，用作平衡木或杠杆的摩擦小的支撑物
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