英语词汇“knife-edge”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	knife-edge
释义	knife-edge (nīfĕj′) n. 1. A sharp cutting edge. 2. A sharp, narrow edge or border: "saying lines that teeter on the knife-edge between literature and lunacy" (Vincent Canby). 3. A wedge of metal used as a low-friction fulcrum for a balancing beam or lever.
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英语词典包含135693条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。