hydra在化妆品里是什么意思

hydra [英][?ha?dr?][美]['ha?dr?] n.水螅;难于根除的祸患;九头蛇; 复数：hydraehydras 例句: 1. Despitethebesteffortsofbrandsandofficials,catchingcounterfeitsislikeslayingahydra. 虽然各大品牌和***机构为打击山寨使尽了浑身解数...