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常见可数名词不规则复数形式词汇总结 Irregular Nouns SINGULAR PLURAL alumnus alumni analysis analyses antenna antennae/antennas appendix appendices axis axes bacterium bacteria basis bases beau beaux bureau bureaux/bureaus child children corpus corpora/corpuses crisis crises criterion criteria curriculum curricula datum data deer deer diagnosis diagnoses ellipsis ellipses fish fish focus foci/focuses foot feet formula formulae/formulas fungus fungi/funguses genus genera goose geese hypothesis hypotheses index indices/indexes louse lice man men matrix matrices means means medium media mouse mice nebula nebulae nucleus nuclei oasis oases ox oxen paralysis paralyses parenthesis parentheses phenomenon phenomena radius radii series series sheep sheep species species stimulus stimuli stratum strata synthesis syntheses synopsis synopses tableau tableaux thesis theses tooth teeth vertebra vertebrae vita vitae woman women | 
