specimen

n.样本，标本

specialise, specialist, speciality, specialization, specialization, specialisation, specialize, specialize, specialise, specialized, specialized, specialised, specially, specially-made, specialty, specie, species, specific, specific gravity, specifically, specification, specificity, specify, specious, speciously, speciousness, speck, speckle, speckled, specs, spectacle, spectacled, spectacles, spectacular, spectacularly, spectator, spectator sports, spectral, spectre (US specter), spectro-, spectrometer, spectroscope, spectroscopic,