单词	pyrocotton
释义	pyrocotton noun py·​ro·​cotton "+ : cellulose nitrate containing about 12.6 percent nitrogen and used in smokeless powders compare pyrocellulose Word History Etymology pyr- + cotton
随便看	sterilizers sterilizes sterilizing sterilsatia sterilsations sterk Sterkfontein ape-man sterlet sterlets sterling sterling area sterling bloc Sterling Heights sterlinger sterlingest sterlingly sterlingness sterlingnesses sterlings Sterlitamak stern stern board stern boat stern chase stern chaser

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