supplement

/'sʌplimәnt/

n. 补充物, 增刊, 补充, 补遗, 补编, 附录, 补角；vt. 补充, 增补

英释：n. a quantity added (e.g. to make up for a deficiency)

词形：过去式 supplemented；过去分词 supplemented；现在分词 supplementing；三单 supplements；复数 supplements