单词	o-grade
释义	o-grade noun linguistics : a phase of a root or of an affix that appears in an ablaut series and is characterized by the vowel o (see grade entry 1 sense 4) Word History First Known Use 1891, in the meaning defined above
随便看	guamanians guamas guamata Guamo guamos guams guamuchil guan guana Guanabacoa guanabana guanabanae guanabanas Guanabara Bay guanacaste guanaco guanacos guanajuatite Guanajuato guanamine guanaquito guanas guanases guanay guanay cormorant

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