roughage

n.粗饲料,粗粮,粗糙的原料

粗纤维；（指食物中）粗纤维成分，纤维素

名词

1. Vegetables and fruits are good sources of roughage for a healthy digestive system.
蔬菜和水果是维持消化系统健康的良好粗纤维来源。

2. It is recommended to have a diet rich in roughage to prevent constipation.
建议摄入富含纤维的饮食，以防止便秘。