英语词汇periostracum怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	periostracum
释义	per·i·os·tra·cum /ˌperɪˈɒstrəkəm/([复] -ca /-kə/) n. (软体动物介壳的)角质层 [NL < PERI-+ Gr ostrakon shell]
随便看	middlingly middling-meat middlingness middlingness middlings middlings' middorsal Middx. middy middy middy blouse middy blouses middy² middy¹ midear Mideast Mideastern Mideastern mideasts midfield midfielder midfielders midfields Midgard Midgard,Midgarth

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