单词 contrayerva 释义 contrayerva|kntrjv|Also -jerva.[Sp.; = ‘counter-herb’, i.e. one used as an antidote, f. contra- 3 + yerva (now yerba) herb.]A name given, in general use, to the root-stock and scaly rhizome of species of Dorstenia (D. Contrayerva...