| 单词 | knotty | 
| 释义 | knotty  (nɒti  )       Word forms:  knottier  ,  knottiest   1. adjective [usually ADJECTIVE noun]  A knotty problem is complicated and difficult to solve.   The new management team faces some knotty problems.   Synonyms: puzzling, hard, difficult, complex     2. adjective [usually ADJECTIVE noun]  Knotty wood has a lot of small hard areas on it where branches once grew.   ...the knotty trunk of a hawthorn tree.   Synonyms: knotted, rough, rugged, bumpy     Collocations:  knotty problem On the menu: the knotty problem of the bank's future leadership.  Times, Sunday Times  It s a knotty problem, isn t it?  Outlook India  The non-decision leaves a knotty problem for the board and its shareholders as they seek to untangle their duties, interests and allegiances.  Times, Sunday Times  Sometimes a crux will not require emendation, but simply present a knotty problem of comprehension.  Retrieved from Wikipedia CC BY-SA 3.0   However, judging by the complex planetary activity between now and the year's end, you can't undo knotty problems.  Times, Sunday Times   | 
	
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