基本解释n. 蜉蝣；生命极短暂的东西同根派生 ephemeron相关词词组短语短语ephemeron table 暂时表Errant Ephemeron 遍历蜉蝣ephemeron更多词组英英字典柯林斯英英字典 something transitory or short-lived ephemeron剑桥字典ephemeron柯林斯字典专业释义生物学蜉蝣(ephemeroptera)