单词	undulatory theory
释义	undulatory theory noun : wave theory Word History First Known Use circa 1828, in the meaning defined above Medical Definition undulatory theory noun un·​du·​la·​to·​ry theory ˈən-jə-lə-ˌtōr-ē-, ˈən-d(y)ə-lə-, -ˌtȯr-ē-  : wave theory
随便看	epic caesura epic drama epic simile epic theater epical epically epicalyces epicalyx epicalyxes epicanthal fold epicanthi epicanthic fold epicanthuses epicardia epicardial epicardial layer epicardium epicarid epicaridan Epicaridea Epicarides epicarp epicarps Epicauta epiccer

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