在《PONS词典》中的词汇
 
 dif·fi·cul·ty [ˈdɪfɪkəlti] 名词
1. difficulty no pl (effort):
2. difficulty no pl (problematic nature):
-  difficulty of a task
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3. difficulty (trouble):
-  inextricable difficulty, situation
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-  externalization of a conflict, a difficulty
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-  externalization of a conflict, a difficulty
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-  externalization of a conflict, a difficulty
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 有关地理学的词语(Klett)
environmental difficulty 名词
-  environmental difficulty
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