| 释义 | 
		1.  | [sing] the ~ (of sth) 中心;要点;实质the central or essential point of a situation, problem, etc.  |  
  | The nub of the matter is that business is declining. 问题的核心是工商业在萎缩。  |  
 n.  | 1. the main point or most important part of a problem or argument 4. a knot of fibres in yarn 5. the most basic or essential part of something 1. the main point or most important part of a problem or argument 4. a knot of fibres in yarn 5. the most basic or essential part of something  |  
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