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roughage

noun
🔊/ˈrʌfɪdʒ/
🔊/ˈrʌfɪdʒ/
[uncountable]
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  1. the part of food that helps to keep a person healthy by keeping the bowels working and moving other food quickly through the body 食物中的粗纤维synonym fibre
    • Fruit and vegetables are important sources of roughage.水果和蔬菜是重要的粗饲料来源。