单词	underived
释义	un·de·rived (ŭn′də-rīvd) adj. Not derived; basic: an underived postulate.
随便看	amplitude modulation amply ampoule ampul ampule ampulla ampullar amputate amputation amputator amputee Amravati amreeta amrita Amritsar Amsterdam AMT amtrac amtrack amu amuck amuck Amu Darya amulet Amun

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