improver

英 [ɪmˈpruːvə]

美 [ɪmˈpruvər]

n.  改良者；改进剂；改良剂; 实习生；学徒

复数：improvers　

化学

BNC.33613

英英释义

noun

• a component that is added to something to improve it
  1. the addition of a bathroom was a major improvement
  2. the addition of cinnamon improved the flavor
  Synonym:additionadd-on
• someone devoted to the promotion of human welfare and to social reforms
  Synonym:humanitariando-gooder

双语例句