单词	hard clam
释义	hard clam noun : a clam with a thick hard shell specifically : quahog Word History First Known Use 1825, in the meaning defined above
随便看	protocephala protocephalon Protoceras protoceratops protoceratopses protocerebral protocerebrum protochlorophyll Protochorda Protochordata protochordate Protociliata protociliate protoclastic protocneme Protococcaceae protococcal Protococcales protococcoid Protococcus protocol protocol statement protocolar protocolary protocoled

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