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单词	Cephalopoda
释义	Cephalopoda /ˌsɛfələˈpəʊdə / /ˌkɛfələˈpəʊdə/ plural noun Zoology A large class of active predatory molluscs comprising octopuses, squids, and cuttlefish. They have a distinct head with large eyes and a ring of tentacles around a beaked mouth, and are able to release a cloud of inky fluid to confuse predators.This section covers almost all of the Mollusca except the three huge clades of advanced mollusks: Bivalvia, Cephalopoda, and Gastropoda.... It is also now generally thought that they were ancestral to the Cephalopoda and Scaphopoda as well. The class Cephalopoda has been traditionally divided into three subclasses on the basis of shell structure, or two subclasses on the basis of gills and other soft parts. Origin Modern Latin (plural), from Greek kephalē 'head' + pous, pod- 'foot'.
随便看	rasper rasp fern rasp house raspiness rasping raspingly raspish raspite Rasputin, Grigori Rasputinism raspy rasqueado rass rassamala rassclaat rasse rassle rassler rassolnik RAST Rasta rastaa roko Rastafari Rastafarian Rastafarianism

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