difluorophosphateWiktionary 原文英美构词拆解didi-前缀fluorofluoro-前缀phosphatephosphate词干di-Two. · Double, twice the quantity.fluoro-(organic chemistry) containing fluorine · fluorescent词源说明di- + fluoro- + phosphate释义名词noun1(inorganic chemistry) The compound or anion derived from phosphate with two oxygen atoms substituted by fluorine: PO2F2−