3个吧?!ornament:中文的话,会说饰品,不一定带在身上,可以是在家里摆的装饰品。a small attractive object used for decoration or for making someone or something more beautiful。Jewellery:这个就是首饰了,都指佩戴在身上的。objects that you wear as decoration. Types of jewelry are rings, which you wear on your finger, bracelets, which you wear on your wrist, and necklaces, which you wear around your neck。Jewellery is ornaments specifically made to be worn.Headgear:这个指带在头上的东西,比如帽子,头盔等headwear or headdress is the name given to any element of clothing which is worn on one's head.