hallmark

hallmark
noun
  1. a mark stamped on articles of gold, silver, or platinum by the British assay offices, certifying their standard of purity
    (经英国检验机构检验,在金、银或铂金制品上打的)纯度印记
    ■a distinctive feature, especially one of excellence
    (尤指表示品质优良的)特点,特征
    the tiny bubbles are the hallmark of fine champagnes.
    细微的气泡是优质香槟酒的特征。
verb
  1. [with obj.]stamp with a hallmark
    给…打上纯度印记
    ■designate as distinctive, especially for excellence
    标明…具有优秀品质;标明…具有某种特征
语源
  1. early 18th cent. (as a noun): from Goldsmiths' Hall in London, where articles were tested and stamped with such a mark
英语宝典
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