劍橋詞典a large , soft , flat bag filled with feathers or artificial material used as a covering on a bed 羽羢被;蓬松棉被 範例 She pulled the duvet over her head to try to shut out the light .The children's duvets have some type of synthetic filling , not goose-down or anything like that.I was just snuggling down into my warm duvet when my phone rang .an unbleached cotton duvet 返回 duvet