柯林斯词典supplemental /ˈsʌplɪˌmɛntəl/ 1. ADJ Supplemental means the same as . 同supplementary[美国英语] [正式] [ADJ n] You'll probably be able to buy supplemental insurance at an extra cost. 再多付一些钱的话，你或许就能买附加险。 返回 supplemental