| 单词 | Caenagnathiformes | 
| 释义 | Caenagnathiformesplural noun  Cae·nag·nath·i·for·mes   ¦sēˌnagˌnathəˈfȯrˌmēz, ¦kīˌn-   : an order of Canadian Cretaceous birds (Neognathae) known from a single immense jaw and believed to be related to the ostriches though in some respects the jaw resembles that of a toothless dinosaur   | 
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