单词	ostraca
释义	os·tra·ca (ŏstrə-kə) n. Plural of ostracon.
随便看	per per- per. peracid peradventure perambulate perambulation perambulator perambulatory per annum P/E ratio perborate percale percaline per capita perceivable perceivably perceive perceiver percent per cent percentage percentile per centum percept

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