单词	nonfossiliferous
释义	nonfossiliferous adjective non·​fos·​sil·​if·​er·​ous ˌnän-ˌfä-sə-ˈli-f(ə-)rəs  : not containing fossils : not fossiliferous nonfossiliferous mudstone Word History First Known Use 1833, in the meaning defined above
随便看	dig in one's heels dig into dig one's own grave dig out dig through dig up dig-dig Digambara digamies digamists digamma digammas digammated digamy digastric digastrics Digby digeneses digenesises digenesisses digenetic Digenetica digenic digenite digerati

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