单词 | pons asinorum |
释义 | pons asinorum/ˌasɪˈnɔːrəm /noun The point at which many learners fail, especially a theory or formula that is difficult to grasp.After he had mastered the fifth proposition as easily as its predecessors, Frank told him that people generally found it difficult - it is the famous pons asinorum which puts a stop to many a budding geometrical career....
OriginMid 18th century: Latin, literally 'bridge of asses', term taken from the fifth proposition of the first book of Euclid. Rhymes |
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