单词	ammonium persulfate
释义	ammonium persulfate noun : a colorless crystalline salt (NH4)2S2O8 used as an oxidizing agent and for improving dense photographic negatives Word History First Known Use 1891, in the meaning defined above
随便看	pupiform pupigenous pupigerous pupil pupil load pupil teacher pupilage pupilages pupilar pupilarity pupilate pupilize pupillage pupillages pupillar pupillarities pupillarity pupillary pupillary substitution pupillate pupilless Pupillidae pupillize pupillo- pupils

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