supererogatory

同义: supererogatory superfluous supernumerary surplus spare redundant excess extra
词性: s
解释: more than is needed, desired, or required
示例: 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