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	elecampane elecampanes elect electabilities electability electable elected electees electing election election cake Election Day election district election pink election posies electioneer electioneered electioneerer electioneerers electioneering electioneerings electioneers elections elections clause elective

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