- the sharp cutting edge of a knife
- any sharp edge
- a sharp-edged wedge of hard material on which the beam of a balance pivots or about which a pendulum is suspended
- a critical point in the development of a situation, process of making a decision, etc
| 单词 | knife edge |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 knife′ edge′,
Collins Concise English Dictionary © HarperCollins Publishers:: knife edge n
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