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1. Oxford Dictionary

   roughage

   • IPA[ˈrʌfɪdʒ]

   英式

   • n.
     fibrous indigestible material in vegetable foodstuffs which aids the passage of food and waste products through the gut；coarse, fibrous fodder.

   • noun: roughage

2. • 釋義

   n.

   名詞

   • 1. fibrous indigestible material in vegetable foodstuffs which aids the passage of food and waste products through the gut fresh fruit and wholemeal bread are important sources of roughage in the diet
   • ▪ coarse, fibrous fodder.
3. • 更多解釋

   roughage

   • IPA[ˈrəfij]

   美式

   • n.
     fibrous indigestible material in vegetable foodstuffs which aids the passage of food and waste ...

   Oxford American Dictionary