单词	Micraster
释义	Micraster noun Mi·​cras·​ter mīˈkrastə(r) : a genus of extinct heart urchins (order Exocycloida) with ambulacral furrows arranged in a small star on the dorsal surface Word History Etymology New Latin, from micr- + -aster
随便看	drifted off drifted off to sleep drifter drifters driftier driftiest drifting drifting off driftingly driftland driftless driftless area driftlessness driftman driftmen driftpiece driftpin driftpins drifts drifts off driftway driftweed driftwind driftwood driftwoods

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