柯林斯词典platinum /ˈplætɪnəm/ 1. N-UNCOUNT Platinum is a very valuable, silvery-grey metal. It is often used for making jewellery. 铂; 白金 返回 platinum剑桥词典a chemical element that is an extremely valuable silver-coloured metal , used in jewellery and in industry 铂，白金 a platinum wedding ring 白金结婚戒指 返回 platinum