单词	Clypeastrina
释义	Clypeastrina plural noun Clyp·​e·​as·​tri·​na -əˈstrīnə, -rēnə : a suborder of sea urchins (order Exocycloida) comprising a large number of flattened more or less discoidal sea urchins (as the cake urchins and sand dollars) compare spatangina Word History Etymology New Latin, from Clypeaster + -ina
随便看	cavias cavicorn Cavicornia cavicorns cavie cavies Caviidae caviidaes cavil caviled caviler cavilers caviling cavilingly cavilingness cavilings cavillation cavillations cavilled caviller cavillers cavilling cavillings cavillous cavils

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