英语词汇first day cover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	first day cover
释义	first day cover 首日封(集邮用语，指贴有纪念邮票并经邮局盖过发行第一日邮戳的信封) Do you want to buy commemorative stamps or first day covers, sir? 先生，您要买纪念邮票还是首日封?
随便看	erratically erratic block erraticism erraticism erraticisms erraticness erratics erratum erred errhine errhines Er Rif erring erringly erringly erron. erroneous erroneously erroneously erroneousness erroneousness erroneousnesses err on the side of caution error error bar

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