bitter principle

英 美
  • 苦味素
  • bitter adj.苦的;痛苦的;辛酸的;激烈的adv.激烈地;极其vt.使变苦n.苦涩;苦酒;苦的东西
  • principle n.原理;原则;主义;信念
Noun:
  1. any one of several hundred compounds having a bitter taste; not admitting of chemical classification