http://www.pons.de/produkte/3-12-517841-X/(牛津大学出版社授权产品)
 
 difficulty <pl difficulties> [美 ˈdɪfəkəlti, 英 ˈdɪfɪk(ə)lti] 名词
1. difficulty U (of situation, task):
-  difficulty
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2. difficulty C (problem):
-  perceptual difficulty
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-  perceptual difficulty
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-  insurmountable difficulty/problem
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-  insurmountable difficulty/problem
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-  circumvent difficulty/obstacle
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-  circumvent difficulty/obstacle
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在《PONS词典》中的词汇