〔李〕n. 杀菌剂　[bacteri- =germ] ←-cide [GK] =killer表示“杀…剂；杀…者”
〔蒋〕[bacteri细菌，cid杀] 杀菌剂
〔李〕[bacteri=bacteria细菌；-cide n.=killer杀……剂] n. killer of bacteria杀菌剂▽bactericidal [bactericid(e);-al a.] a.杀菌的