柯林斯词典supplemental /ˈsʌplɪˌmɛntəl/ 1. ADJ Supplemental means the same as . 同supplementary[美國英語] [正式] [ADJ n] You'll probably be able to buy supplemental insurance at an extra cost. 再多付一些錢的話，你或許就能買附加險。 返回 supplemental