单词	polyamine
释义	polyamine noun poly·​amine ˈpä-lē-ə-ˌmēn  ˌpä-lē-ˈa-ˌmēn  : a compound characterized by more than one amino group Word History First Known Use 1861, in the meaning defined above Medical Definition polyamine noun poly·​amine ˈpäl-ē-ə-ˌmēn  ˌpäl-ē-ˈam-ˌēn  : a compound characterized by more than one amino group
随便看	improve on improve on/upon improve upon improved improved cylinder improved on improved upon improved wood improvement improvement factor improvements improvements and betterments insurance improver improvers improves improves on improves upon improvidence improvidences improvident improvidentially improvidently improving improving on improving upon

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