dihydroWiktionary 原文英美构词拆解didi-前缀hydrohydro-前缀di-Two. · Double, twice the quantity.hydro-water · liquid词源说明From di- + hydro-.释义名词noun1(chemistry, especially in combination) Two hydrogen atoms in a molecule同族词派生词 17dihydroalprenolol·dihydrocarbazole·dihydroergocristine·dihydroergocryptine·