柯林斯词典supplementary /ˌsʌplɪˈmɛntərɪ, -trɪ/ 1. ADJ Supplementary things are added to something in order to improve it. 补充的 ...the question of whether or not we need to take supplementary vitamins. …我们是否有必要补充维生素的问题。 返回 supplementary剑桥词典 supplementary adjective (ANGLE) mathematics specialized If an angle is supplementary to another angle , it forms 180 ° when combined with it. （角）互补的 supplementary adjective (EXTRA) C2 mainly UK (US usually supplemental) extra 额外 a supplementary income 额外收入 返回 supplementary