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免費網上英漢字典|3Dict

ratite bird

資料來源 : WordNet®

ratite bird
     n : flightless birds having flat breastbones lacking a keel for
         attachment of flight muscles: ostriches; cassowaries;
         emus; moas; rheas; kiwis; elephant birds [syn: {ratite},
         {flightless bird}] [ant: {carinate}]
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