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	thighbone thighbones thighed thighs thigmo- thigmocyte thigmoreceptor thigmotaxes thigmotaxis thigmotropism thigmotropisms thigs thik thilk thill thill horse thiller thillers thills thimble thimble and pea thimble chamber thimble lily thimble-eye thimbleberries

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