单词	semiweeklies
释义	同semiweekly
随便看	potassium peroxyborate potassium peroxyborate {potassium perborate} potassium peroxycarbonate potassium peroxycarbonate--potassium percarbonate potassium peroxychromate potassium peroxychromate--potassium perchromate potassium peroxydichromate potassium peroxydiphosphate potassium peroxydisulfate potassium peroxyniobate potassium peroxytantalate potassium peroxytitanate potassium peroxyuranate potassium peroxyzirconate potassium perrhenate potassium perruthenate potassium persulfate potassium persulphate potassium pertantalate potassium perthiocarbonate potassium pertitanate potassium peruranate potassium phenolsulfonate potassium phenoxide potassium phenoxide-- potassium phenylate