单词	actinostome
释义	actinostome noun ac·​tin·​o·​stome ak-ˈti-nə-ˌstōm plural -s 1 : the mouth of a radially symmetrical animal 2 : the peristome of an echinoderm Word History Etymology actin- + -stome First Known Use 1860, in the meaning defined at sense 1
随便看	sneeze at sneeze gas sneezed sneezed at sneezeguards sneezeless sneezer sneezers sneezes sneezes at sneezeweed sneezeweeds sneezewood sneezewoods sneezewort sneezeworts sneezier sneeziest sneezing sneezing at sneezing gas sneezings sneezy snell Snell's law

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