1. 额外人员：SECOND COOK 二厨 | SUPERNUMERARY 额外人员 | SHIP'SCOMPLEMENT 船上的定员

2. 额外的：supernova 超新星 | supernumerary 额外的 | supernutrition 营养过多

3. 临时雇员：supernumerary 额外人员 | supernumerary 临时雇员 | supernumeraryengineer 编外轮机员

4.

4. 额外的;多余的;多余者：supernucleus 超核 | supernumerary 额外的;多余的;多余者 | superoctane fuel 高辛烷值燃料

1. a minor actor in crowd scenes

    Synonym: spear carrierextra

2. a person serving no apparent function

    e.g. reducing staff is difficult because our employees include no supernumeraries

1. more than is needed, desired, or required

    e.g. trying to lose excess weight
           found some extra change lying on the dresser
           yet another book on heraldry might be thought redundant
           skills made redundant by technological advance
           sleeping in the spare room
           supernumerary ornamentation
           it was supererogatory of her to gloat
           delete superfluous (or unnecessary) words
           extra ribs as well as other supernumerary internal parts
           surplus cheese distributed to the needy

    Synonym: excessextraredundantsparesupererogatorysuperfluoussurplus