单词	Protoceras
释义	Protoceras noun Pro·​toc·​er·​as prəˈtäsərəs : a North American Miocene genus of ungulates related to the chevrotains Word History Etymology New Latin, from prot- + -ceras
随便看	orthogenetically orthogenic orthogenics orthogeosyncline orthogneiss orthogonal orthogonal functions orthogonal projection orthogonal system orthogonal trajectory orthogonalisation orthogonalise orthogonalised orthogonalises orthogonalising orthogonalities orthogonality orthogonalization orthogonalizations orthogonalize orthogonalized orthogonalizes orthogonalizing orthogonally orthograde

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